21 actors who started as background extras in movies and TV shows

The Oscar winner appeared in a couple of scenes throughout the film, including passing by Matthew McConaughey's character as he leans against a wall, pictured.

Stallone appeared as a mugger, harassing commuters and Allen's character on the subway.

Appearing on screen for seconds, Pitt is the party-goer in the left corner. He also appeared in the background of the 1987 movie "No Man's Land" as a waiter.

The "Ant-Man" star (wearing a green long-sleeved shirt) appeared frightened as two of the characters discuss killer Freddy Krueger and how he invades people's nightmares.

Eastwood appeared as an extra in a number of films in his 20s, including "Francis in the Navy," "Revenge of the Creature," "Lady Godiva of Coventry," and "Tarantula."

Tatum originally had a scene in the film, but it was cut for time. His only remaining screen time is a brief appearance where he runs behind Tom Cruise's character when the aliens attack the church. You can spot him directly to the right of the police officer.

Stewart played an annoyed girl (seen at the bottom of the screen) waiting at the back of the line to use the school's water fountain.

Schwarzenegger had no lines in the film, but he showed off the physique that would soon turn him into an action movie star.

To find Willis, you might have to squint, but he's located on the third row on the right side of the screen.

Dafoe had more scenes in the film, but he said he was fired by director Michael Cimino after laughing too hard at a joke on set.

Wearing a black tank top, Van Damme played one of the onlookers watching break dancing in the street.

The future Oscar winner doesn't have any lines but can't help cracking a smile at Eddie Murphy's antics.

Day-Lewis played a boy who scratched the side of a blue car with a broken bottle.

Sometimes it pays to be an extra. Fox would reunite with "Bad Boys II" director Michael Bay for his next film, "Transformers," in a starring role.

The future Oscar winners were among the crowd of people watching a baseball game at Fenway Park, though they're not visible in the film.

Ledger played the role of Orphan Clown in the film. One of Ledger's final roles before his death in 2008 was as the Joker in "The Dark Knight."

Before he became forever associated with the image of a cowboy, Wayne found work appearing as an extra in silent era films. Finding Wayne in the film is a bit like playing a game of "Where's Waldo?"

Chan's character is quickly beaten and dispatched by Lee's in the film. Chan also did extra work on Lee's 1972 film "Fists of Fury."

The show was filmed in Clooney's hometown of Augusta, Kentucky, giving then-17-year-old Clooney his first taste of stardom.

Do you spot Monroe in this scene? She's wearing the blue dress in the corner and passes by actress June Haver as she's leaving church. She's later seen in the film rowing a canoe.

DiCaprio briefly appeared in season three as Darlene took home economics.

• Read more:
• 34 celebrities you didn't know were related to the royal family
• Children of celebrities who are following in their parents' footsteps
• 18 times celebrities shared their parenting tips
• 21 times A-listers were paid a surprisingly low amount for iconic movie roles