Robin Williams's final film. It was released on the one year anniversary of his death.

The first film since The Meaning of Life (1983) to feature all five surviving members of Monty Python. According to Director Terry Jones, this will probably be the last time they will appear in a film together.

In a 2009 interview, Robin Williams said that he always wanted to star in a movie with Simon Pegg.

To get the dog to look at him, Simon Pegg wore a sausage on his head.

Roger Taylor, the drummer from Queen, sings the opening theme song "Absolutely Anything and Anything At All".

Terry Jones began writing the movie with Gavin Scott in the early 1990s. In an interview in 2014, Jones said that noted science fiction writer Douglas Adams looked over the script, and he said that Dennis the Dog's scenes were the funniest.

This is the first film directed by Terry Jones in 19 years.

Terry Jones said he was influenced by the H.G. Wells tale "The Man Who Could Work Miracles".

Judy Loe, who plays the canteen lady, is Kate Beckinsale's mother.

Much of the film was shot in and around an abandoned school that was converted for the production. Neil's flat and the graveyard were all filmed in the same location.

DIRECTOR_CAMEO(Terry Jones): Driver of the van that knocks Neil off his bicycle early in the film.

Sanjeev Bhaskar and Meera Syal are married, and have collaborated in various comedy projects.

Benedict Cumberbatch and Gemma Arterton were originally cast as Neil and Catherine.

Simon Pegg loves dogs, and got on well with Mojo, who plays Neil's dog Dennis.

When Neil teaches class 10C, a large board to the right has a display on William Shakespeare's "A Winter's Tale". In The World's End (2013), Pegg's character says he studied A Winter's Tale when he was in school.

The main alien refers to itself as a "death dealer", the same title Kate Beckinsale's character has in the Underworld series.

This movie was given a limited theatrical release in the U.S. on May 12, 2017, and was available on DVD and Blu-ray as of June 27, 2017.

In Italy, the film was titled "Un'occasione da Dio", meaning "A God-like Chance" or "A Wonderful Chance." A lot of Italians thought it was connected to Bruce Almighty (2003) and Evan Almighty (2007), whose Italian titles also included the phrase "da Dio" ("God-like/wonderful").

Simon Pegg and Eddie Izzard have both voiced Reepicheep in The Chronicles of Narnia films. Izzard voiced him in The Chronicles of Narnia: Prince Caspian (2008), and Pegg voiced him in The Chronicles of Narnia: The Voyage of the Dawn Treader (2010).

The dog is named Dennis. This is a name that has been used in Monty Python sketches, such as Dennis Moore and Dennis the oppressed in Holy Grail.

Two of the actors in the film have connections to the Beatles. Eddie Izzard has a supporting role in "Across the Universe", a musical featuring Beatles' songs, and Robin Williams sings a cover of "Come Together" (along with Bobby McFerrin) on the compilation album "In My Life", produced by George Martin.

Joanna Lumley has appeared in two cinema movies, with the word "Absolutely" in the title, which have been released in consecutive years. They were comedies, Absolutely Anything (2015), and in the following year, Absolutely Fabulous: The Movie (2016).

In Spain, the film was simultaneously released in cinemas, Video-On-Demand, and DVD and Blu-ray. The film was only released in seven theaters, and projected in a dubbed version in one theater, and a subtitled version in seven theaters.

The 3 singers & musical bar in the lower right hand side of the mural in the canteen is an exact copy of part of the mosaic on the auditorium of Coronado High School in Scottsdale, AZ. This mosaic was also seen in Bill & Ted's Excellent Adventure.

When the aliens first appear, the camera pans past a pile of wrecked space ships in the background. At the top of this pile lies the spaceship from Monty Python's Life of Brian (1979), which rescued Brian after he fell from the tower while being chased by the Roman guards.

In the last scene, Grant, who has been turned into a Corgi, says to Dennis the dog, who is showing romantic interest, "I'm a man!", and Dennis replies, "Nobody's perfect". This alludes to the final scene of the 1959 classic, "Some Like It Hot", in which Jack Lemmon and Joe E. Brown speak the exact same lines.

Among the last and most possible candidates for the experiment were Justin Bieber and Sarah Palin, with the latter one used for a dramatic pause to make the audience think the earth is truly doomed.

When NASA's Pioneer space probe is intercepted by The Intergalactic Council of Superior Beings, Sharon (John Cleese) removes Pioneer's famous golden plaque showing two hhuman forms and adds it to a large collection of similar plaques from other intercepted alien probes. One of these features the the pair of distinctive one-eyed aliens who accidentally picked up Brian of Nazareth (Graham Chapman) during a visit to Earth in 33AD in 1979's Monty Python film The Life of Brian. The remains of Pioneer are unceremoniously tossed onto a big pile of spaceships atop which can be seen the alien craft from the 1979 python film.

This is the fourth time Simon Pegg has appeared in a movie featuring zombies. The first was Shaun of the Dead (2004), and he had cameo appearances in George A. Romero's Land of the Dead (2005) and Diary of the Dead (2007).