Irish actor Chris O'Dowd was initially announced as the voice of Tigger but he was replaced with his long time voice actor Jim Cummings alongside Pooh Bear the final film due to test audiences not finding O'Dowd's take on Tigger with a British accent that very fitting for the character.

Jim Cummings has played Winnie the Pooh and Tigger in Disney features since 1988 and 1989 (full time since 1999) respectively.

Before his untimely death, composer Jóhann Jóhannsson was set to score this film.

Not to confused with Goodbye Christopher Robin (2017) that recounts the inception of Winnie the Pooh and the Hundred Acre Wood. This film is an entirely fictional story.

Young Christopher Robin's outfit is based on the one he wore in the original Ernest Shepard illustrations.

Some elements from the A.A. Milne stories appear in this film which did not appear in the previous Disney adaptations. Such as the fact of Owl and Rabbit being the only animals who are REAL animals, rather than stuffed toys, Piglet's predilection for acorns (or "haycorns," as he calls them) and the use of the word "expotition."

Jim Cummings is the only voice actor from the animated films to reprise his role, making this the first time in a live-action adaption of a Disney animated feature film to do so.

Winnie-the-Pooh and his friends in this film are a combination of their Disney animated versions (where they were walking talking animals), and A.A. Milne's Pooh children's stories (where they were stuffed animals). The filmmakers also studied the drawings of Winnie-the-Pooh artist Ernest Shepard for influence.

Brad Garrett 's 15th voice role in a Disney movie.

Brad Garrett (Eeyore) is probably best known for his role as Robert Barone, Ray's older brother on TV's Everybody Loves Raymond (1996). In a meeting with the show's head writer Philip Rosenthal, Rosenthal had compared the character to Eeyore. "I am Eeyore," was Garrett's reply. "Yes, exactly," said Rosenthal. "No," said Garrett. "I mean I AM Eeyore. I do the voice for Eeyore."

The story is somewhat reminiscent of the film Hook (1991). In both cases, the young hero of a magical world leaves for the real world where he gets married and has children, only to become obsessed with work and to forget his childhood. A character from that magical world comes to the real world, brings the hero back to the magical world, and reminds them how to be young and happy. Both films are set partially in London and are based on popular British children's books which were adapted into animated films by Walt Disney.

The opening segment, in which the animals bid Christopher Robin farewell and he promises not to forget Pooh, is loosely adapted from the very last Pooh story written by A.A. Milne.

Jóhann Jóhannsson was hired to score the film, shortly before his death on February 9, 2018. The film is dedicated to his memory.

Dustin Hoffman, Chris O'Dowd, Alan Tudyk, and Martin Short were all considered for the voice of Tigger.

Brad Garrett had previously voiced Eeyore on some Disney Winnie the Pooh CD-ROMs which were released in the mid 1990s.

The film depicts "Christopher Robin" as the character's full name. That is, Robin is his last name. The real Christopher Robin's last name was Milne, as he was the real life son of Pooh creator, A.A. Milne. In previous fictional productions his last name was not given.

The film is to release in 2018, the 30th anniversary of The New Adventures of Winnie the Pooh (1988), the 35th anniversary of both Welcome to Pooh Corner (1983) and Winnie the Pooh and a Day for Eeyore (1983), the 50th anniversary of Winnie the Pooh and the Blustery Day (1968), and the 15th anniversary of Piglet's Big Movie (2003).

Jim Cummings is the only cast member from the animated series to be reprising his roles as Pooh and Tigger, whilst the others have different voices from the rest of the series.

Much of the filming of the Hundred Acre Wood scenes took place at Ashdown Forest, which was the original inspiration for the setting, as well as Windsor Great Park.

Winnie the Pooh's third live action appearance after Welcome to Pooh Corner (1983) (as people in costumes) and The Book of Pooh (2001) (as puppets).

The release of Christopher Robin (2018) in China was denied. The reason is the banning of images and the name Winnie the Pooh on social media in China. Bloggers have tied images of Chinese president Xi Jinping to Winnie the Pooh in humorous mashups.

Eeyore reads a poem at the "fairwell" party. It is an abridged version of the poem Eeyore recited in the last Pooh story.

This is the very first time since Winnie the Pooh and Tigger Too (1974) where Roo is voiced by a girl and not voiced by a boy.

Two lines, often erroneously attributed to A.A. Milne on the internet, are in the dialogue for this movie. "People say nothing is impossible, but I do nothing every day" and "What day is this? It's today."

This is the longest Winnie the Pooh film to run at 104 minutes unlike the previous animated ones which were either 60 or 70 minutes long.

Richard M. Sherman has been confirmed to write three original songs for the film after having done so with his late brother Robert B. Sherman in many of the preceding Disney's Winnie the Pooh feature films, including The Many Adventures of Winnie the Pooh (1977), The Tigger Movie (2000), and also most of the theatrical shorts and one direct-to-video Winnie the Pooh: Seasons of Giving (1999). It has been confirmed that the title song "Winnie The Pooh" from The Many Adventures of Winnie the Pooh (1977) will be used in this film and so will the other two original songs "Up, Down, Touch the Ground" and "The Wonderful Thing About Tiggers".

Jim Cummings and Brad Garrett are the only American actors in the film while the rest of the cast members are from the UK doing British Accents for their respective characters to reflect the film now having a more England setting like the original books as opposed to a North American one like Previous Disney Adaptions, although Hayley Atwell has a dual American-British citizenship.

This is the second live-action Disney film for Hayley Atwell after Cinderella (2015), Toby Jones after Muppets Most Wanted (2014), and for Ewan McGregor after Beauty and the Beast (2017).

Several of Christopher Robin's co-workers - Hal Gallsworthy, Ralph Butterworth, Paul Hastings, Matthew Leadbetter and Joan MacMillan - are named after the original voice actors for the Winnie-the-Pooh characters in the 1960s: Hal Smith (Owl), Ralph Wright (Eeyore), Paul Winchell (Tigger), Junius Matthews (Rabbit) and John Fiedler (Piglet).

The plot of Christopher Robin being an adult was reused from The New Adventures of Winnie the Pooh (1988) series called The New Adventures of Winnie the Pooh: Grown, But Not Forgotten (1991).

A red balloon also plays an important role in Winnie the Pooh (2011), which was the last time Pooh and his friends appeared on the big screen prior to this movie.

Gemma Arterton was considered to play Christopher Robin's wife Evelyn. However she later decided to not take on the role.

Tigger sees his reflection and confuses it for another tigger, just as he did in Winnie the Pooh and the Blustery Day (1968).

This is the first Winnie the Pooh film to be rated PG by the MPAA, rather than G like the previous and fully animated films in the franchise had been.

At one point, Piglet flies through the air and lands against the windshield of Evelyn's car. This is reminiscent of a scene from Winnie the Pooh and the Blustery Day (1968) when a big wind causes him to hit Owl's window in just the same way.

Besides Pooh and Tigger, all of the animal characters have been recast since their last big screen appearance in 2011. Peter Capaldi succeeds Tom Kenny, and Toby Jones succeeds Craig Ferguson as Owl. Interestingly, both Capaldi and Ferguson are Scottish and affected a British accent when voicing their respective roles. Ewan McGregor is also Scottish, but plays an Englishman.

This is Toby Jones's first voice-over role in a theatrical film since voicing Dobby the House Elf in Harry Potter and the Chamber of Secrets (2002), and Harry Potter and the Deathly Hallows: Part 1 (2010).

The opening animation segment is based on the artwork of Winnie-the-Pooh artist Ernest Shepard.

When the adult Christopher Robin meets Eeyore for the first time, he is floating on his back down a stream. This mirrors an event from one of the original Pooh books, which itself was featured in Winnie the Pooh and a Day for Eeyore (1983).

Toby Jones and Mark Gatiss's second time working together since Sherlock (2010).

Pooh and his friends describe their mission to London as an "expotition." This is another reference to the Milne stories in which Pooh and his friends go on an "expedition" to discover the North Pole. Pooh simply gets the word wrong.

Toby Jones (Owl), Mackenzie Crook (Newspaper seller) and Simon Farnaby (Taxi driver) appeared in the TV series "Detectorists" (2014) together.

Ewan McGregor plays the adult Christopher Robin. His father, A.A. Milne, was played by Domhnall Gleeson in Goodbye Christopher Robin (2017). McGregor and Gleeson have both appeared in the Star Wars films. McGregor played the young Obi-Wan Kenobi in the Prequel Trilogy, while Gleeson plays General Hux in the Sequel Trilogy.

This is the first Winnie the Pooh film to be shot in the 2.35:1 aspect ratio.

This is Brad Garrett's seventh time voicing a character in a live action film, after Teenage Mutant Ninja Turtles: Out of the Shadows (2016) (Krang), The Country Bears (2002) (Fred) Underdog (2007) (Riff Raf), the Night at the Museum trilogy (Easter Island Head), Garfield (2004) (Luca), and Casper (1995) (Fatso).

This is Peter Capaldi's third movie role that features a bear character after playing Mr. Curry in both Paddington (2014) and Paddington 2 (2017).

The seven year gap between Winnie the Pooh (2011) and Christopher Robin (2018) is the same amount of time between the appearance Owl and Christopher Robin's appearances in the series, after they were completely absent between 2004 and 2011.

This, along with The Jungle Book (2016), are the only live action adaptions of Disney animated feature films to not rename any of the characters from their fully animated counterparts.

Hayley Atwell and Toby Jones also starred together in Captain America: The First Avenger (2011) and Captain America: The Winter Soldier (2014) as well as the TV series Agent Carter (2015).

This movie will be released 41 years after The Many Adventures of Winnie the Pooh (1977), 21 years after Pooh's Grand Adventure: The Search for Christopher Robin (1997), 18 years after The Tigger Movie (2000), 15 years after Piglet's Big Movie (2003), 13 years after Pooh's Heffalump Movie (2005), and seven years after Winnie the Pooh (2011).

Peter Capaldi, Mark Gatiss, Sophie Okonedo, and Toby Jones have all previously appeared in the modern incarnation of Doctor Who (2005)

The film was denied release in China, as Chinese citizens have drawn comparisons between Winnie the Pooh and Chinese leader Xi Jinping since mid 2017.

Prior to the full casting confirmation, Kristen Anderson-Lopez was thought to have been reprising her role as Kanga, after having previously done so in Winnie the Pooh (2011).

Ewan McGregor and Marc Forster's second film project together after Stay (2005).

Ewan McGregor and Hayley Atwell had previously worked together on Cassandra's Dream (2007) with director Woody Allen.

This is Jim Cummings's sixth voice over role in a live-action film after The Garbage Pail Kids Movie (1987) (Greasy Gerg and Nat Nerd), Who Framed Roger Rabbit (1988) (the Toon Bullet with a mustache), Cabin Boy (1994) (Cupcake), Babe: Pig in the City (1998) (a pelican) and Small Soldiers (1998) (Ocula). It also turns out that both Who Framed Roger Rabbit (1988) and The New Adventures of Winnie the Pooh (1988) came about 30 years ago prior in 1988 and they are both made by Disney (despite Who Framed Roger Rabbit (1988) being released by Touchstone Pictures it's still considered as a Disney movie).

This is the first Winnie the Pooh film to have its music score composed by two composers instead of just one; all the previous Winnie the Pooh films had their music scores composed by only one composer.

Wyatt Dean Hall was originally considered to reprise his role of Roo for this movie but a girl named Sara Sheen replaced him as the voice of Roo due to his young voice hitting puberty at the time.

Tristan Sturrock who plays Christopher Robin's Father is the real life Dad of Bronte Carmichael who plays Madeline Christopher Robin's daughter

Christopher Robin (2018) had its premiere in Burbank, California on July 30, 2018.

Toby Jones and director Marc Forster's second film together after Finding Neverland (2004).

Christopher Robin the film is inspired by A. A. Milne and E. H. Shepard's book Winnie-the-Pooh and is a live-action/CGI extension of the Disney franchise of the same name.

At the end of the film, Christopher Robin saves the company by suggesting the idea of giving employees paid vacation in order to encourage them to buy more luggage. The first American businessman to give his employees both Saturday AND Sunday off of work was Henry Ford, and he only did it so that they would drive more.

Christopher Robin's life as depicted in the film bears many parallels to, if not a fictionalized account of his real-life inspiration, C.R. Milne (A.A. Milne's son, who was the basis for Christopher Robin in his stories). Both Christopher Robins severed their ties with Pooh once they attended boarding school and served in World War II. Both also married and a daughter; Madeline in the film, Clare in real life. But while Madeline is perfectly healthy, Clare had a severe case of cerebral palsy and she and her mother set up a trust fund to help raise awareness of her disability.

When Madeline takes Winnie the Pooh and his friends out of the hundred-acre wood and into the city, you can clearly see a woman strolling past them, walking a Dalmatian on a leash. This is a nod to another great Disney film, "101 Dalmatians" (1961).