Dramatization of the 2010 documentary film Marwencol (2010).

In the first scene of the movie, as Cap'n Hogie is in flight and calling over the radio, he uses the call sign 'Foxtrot Uniform Charlie Kilo'...a cryptic slang way to use profanity.

The dolls were portrayed via motion capture by their respective actors and actresses.

This film was previously titled "The Women of Marwen."

In the hobby store, when Mark checks out the miniature medals, the Purple Heart he buys has a reference label next to it reading CRM-114. CRM-114 is a piece of radio equipment in Stanley Kubrick's "Doctor Strangelove". The code has then been used by Kubrick in latter films and by other filmmakers as a tribute to him.

With a budget of $40 million, it debuted with $2.4 million in its opening weekend, making it one of the biggest box office failures of 2018.

The human counterpart for Suzette is revealed to be a pornographic actress that Mark admires. Leslie Zemeckis, who plays Suzette, got her start appearing in softcore Skinemax films.

Deja Thoris, one of the characters in the movie, shares her name with a main character from Edgar Rice Burroughs series of books about John Carter, Warlord of Mars.

The real-life doll village is actually named Marwencol, a combination of Mark, Wendy, and Colleen. The real Colleen became the character Nicol, so the "col" was dropped from the name.

The seventh Universal's live-action/animated hybrid film, after Casper (1995), The Adventures of Rocky & Bullwinkle (2000), Paul (2011), Hop (2011), Ted (2012) and Ted 2 (2015).

At the first live scene, at the background, there is a moving van, with "Allied" written on it. "Allied" is also another Robert Zemeckis' movie, with Marion Cotillard and Brad Pitt.

Deja asks Mark to make a time machine and asks for it to fly. The time machine he makes resembles the DeLorean from the Back to the Future series, including the wheels that rotate to make the car hover. Both films were directed by Robert Zemeckis, and both films were scored by Alan Silvestri.

When the Time Machine goes to the future, the streaks it leaves exactly resembles the DeLorean's tire streaks from the "Back to the Future" trilogy.

This is the second film that Steve Carrell and Leslie Mann have been in together as semi-romantic interests. Just as in the movie 40 Year Old Virgin, their characters did not end up becoming romantically involved as Steve Carell's character intended.