21 Incredible Hidden Details in Movies That Will Blow Your Mind

Behind the scenes, hundreds of people spend hundreds of hours creating a film we watch in more or less two hours.

On first viewing, film fans might not pick up on all the intricate details, but that's not to say they're not there. If really scrutinised, plenty of intriguing details come to light—from family members slipped into the cast, to allusions left in by animators, to foreign phrases with hidden meanings.

Here's our rundown of boggling trivia from movie blockbusters that you may have missed.

1. Forest Gump (1994)

Forrest Gump
Beloved blockbuster Forrest Gump starred Tom Hanks at his commercial peak. Paramount

Tom Hanks had trouble mastering Forrest Gump's Southern drawl for this epic drama film. In the end, the award-winning star had to learn from the child actor, Michael Humphrey, playing younger Forrest. Humphrey's was a genuine Southern accent which Hanks picked up by studying him on set.

2. Anastasia (1997)

Daughters of Czar Nikolai II, including Marie Tatiana, Anastasia, and Olga, are shown in an undated portrait.

In Disney's animated musical about the lost princess, Anastasia Nikolaevna of Russia, the drawing that young Anastasia gives to her grandmother mimics a 1914 painting created by the real princess Anastasia.

3. Raiders of the Lost Ark (1981)

61 Raiders of the Lost Ark
Indiana Jones Raiders of the Lost Ark Paramount Pictures

The first film of the Indiana Jones franchise features a map that shows Palestine in the place of Israel. This is because the movie is set in 1936, and Israel was not formally declared as a state until 1948.

4. Napolean Dynamite (2004)

6 Napoleon-Dynamite
Still from Napoleon Dynamite. Fox Searchlight Pictures

In cringe-filled comedy Napolean Dynamite, the eponymous character played by Jon Heder expresses himself through childish pencil sketches. Heder drew all of the drawings used in the movie—except for the unicorn.

5. Almost Famous (2000)

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Penny Lane and William from Almost Famous. DreamWorks Pictures

In this rock and roll flick when Penny Lane (Kate Hudson) picks up William (Patrick Fugit) to drive to the Riot House, the iconic album cover for Pink Floyd's The Dark Side of the Moon is projected onto the car windshield.

6. The Shining (1980)

Jack Nicholson in The Shining
Jack Nicholson peering through axed in door in lobby card for the film 'The Shining', 1980. Warner Bros/Getty Images

It turns out Stanley Kubrick's renowned horror was a family affair. Vivian Kubrick, one of the director's daughters plays a partygoer dressed in black in the 1920s ball scene.

7. The Last Black Man in San Francisco (2019)

Last black man in san francisco
Rob Morgan attends "The Last Black Man In San Francisco" New York Premiere. (Photo by Dominik Bindl/Getty Images)

In one scene in this moving film, a busker sings "San Francisco (Make Sure to Wear Flowers in your Hair)" then jokingly starts singing "I Got 5 On It". The actor is Michael Marshal, famous for singing the hook on the rap song "I Got 5 On It" by The Luniz.

8. Dumb and Dumber (1994)

Dumb and Dumber (1994)
Dumb and Dumber is a 1994 American comedy film directed by Peter Farrelly. New Line Cinema

In the first film in the American comedy franchise, when Lloyd Christmas (Jim Carrey) checks the time in the bathroom, his watch reads "Casino" as opposed to the popular brand "Casio".

9. Goodfellas (1990)

Goodfellas is about Henry Hill and his life in the mob. Warner Brothers/ Archive Photos/Getty Images

Martin Scorsese took from his personal life when directing the gangster movie Goodfellas. He used the same wine (Valpolicella Classico Bolla) in the dinner scene as his parents drank in Italianamerican, the documentary he made about his parents in 1974.

10. Poltergiest (1982)

23 Poltergeist
In Poltergeist a family's home is haunted by a host of ghosts. Metro-Goldwyn-Mayer

Robbie Freeling climbs a foreboding oak tree in his backyard in Steven Spielberg's supernatural horror. The large jagged crack in the bark is the tree's mouth, which tries to devour him later on.

11. Trainspotting (1996)

#98. Trainspotting (1996)
Trainspotting is a 1996 British black comedy-drama film directed by Danny Boyle. Channel Four Films

In the Scottish cult-classic, the football club that Renton, Begbie, and co, play against was comprised of real members of the Calton Athletic Recovery Group of Glasgow. The men were former heroin addicts-turned-counsellors who consulted on the film.

12. Parasite (2019)

#2. Parasite (2019)
Parasite is a 2019 South Korean black comedy thriller film directed by Bong Joon-ho. Barunson E&A

A scene in the Oscar-winning South Korean film, depicts a book on the Park family's shelf about Alfred Hitchcock. Director Bong Joon-ho admitted in an interview that Hitchcock greatly influenced the movie and that the Bates motel in Psycho was an inspiration for his masterpiece.

13. The Incredibles 2 (2018)

#29. Incredibles 2
The Incredibles 2 is an animated superhero film produced by Pixar Animation Studios and released by Walt Disney Pictures. Walt Disney Pictures

In this animated superhero film, Dash's 1960s math book's text is copied directly from the website helpingwithmath.com. The page has had the exact text for its 5th-grade math standards since 2014.

14. Great Gatsby (2013)

16 The Great Gatsby
The Great Gatsby is a romantic drama film based on F. Scott Fitzgerald's 1925 novel of the same name. Warner Bros.

The phrase "ad finem fidelis" is emblazed on Jay Gatsby's grandiose gates in Baz Luhrmann's movie remake. From the Latin "faithful to the end", the reference could hint at Gatsby's unwavering love for Daisy.

15. American Hustle (2013)

15 American Hustle
Amy Adams in American Hustle, a 2013 American black comedy crime film about con artists. Columbia Pictures

The black-comedy crime film, shows Mayor Carmine Polito (Jeremy Renner) kissing a baby while greeting constituents on the street. The child is Renner's real-life daughter Eva, who was only 1 month old at the time.

16. Mamma Mia (2008 & 2018)

04 Mamma Mia! Here We Go Again
Mamma Mia! Here We Go Again is the second musical romantic comedy in the series. Universal

In Mamma Mia! (2008) and Mamma Mia! Here we Go Again (2018) ABBA singers Björn Ulvaeus and Benny Andersson cameo in both movies.

17. The Simpsons Movie

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The Simpsons Movie (2007) is an animated feature film based on the long running TV show of the same name.

In a scene from The Simpsons Movie (2007), you can see a crashed ambulance in the family's backyard. This has remained there since season two of the show which aired in 1990—a whole 17 years.

18. The Dark Night (2008)

The Dark Knight is the 2008 sequel to Batman Begins. (Photo by Paul Kane/Getty Images)

In Christopher Nolan's iconic superhero film, the Joker is constantly licking his lips. This wasn't written into the script, but came about because the prosthetic scars that Heath Ledger wore kept falling off. Ledger would lick his lips to keep them in place and gradually, it became a part of the Joker's character.

19. Jojo Rabbit

24 Jojo Rabbit
A comedy film about a young German boy who idolizes Hitler. Fox Searchlight

In one scene, the imaginary Hitler offers Jojo cigarettes and is shown eating meat. In truth, Hitler was strongly opposed to smoking and was a vegetarian, which implies that young Jojo is quite oblivious about Hitler.

20. The Invention of Lying (2009)

02 The Invention of Lying
The Invention of Lying is a 2009 American romantic comedy film written and directed by Ricky Gervais and Matthew Robinson. Warner Bros.

As this comedy is set in a world where no one has ever lied the $100 bills are all old fashioned. The anti-counterfeit updates that came into circulation around 1990 wouldn't have been needed if everyone was truthful.

21. Scarface (1983)

37 Scarface
Scarface is a 1983 American crime drama film directed by Brian De Palma. Universal Pictures

In the scene depicting Tony's drug deal with Hector, as Tony is being chained up, Hector says, "Ok, cara cicatriz". In English this means "Ok, scar face". This is the only time in the violent crime drama that Tony is referred to as Scarface.