Renée Zellweger

The 'Bridget Jones' actress was an extra in the film 'Dazed and Confused' in 1993.

Bruce Willis

Back in 1982, we could see Willis sitting in a courtroom, with hair, as an extra in 'The Verdict.'

The iconic actress was an extra in the movie 'Sauce Tartare' in 1949.

In 2003, the actress appeared in a brief dancing scene in the movie 'Bad Boys II.'

Sly Stallone can be seen as an extra in Woody Allen's 1971 film 'Bananas.'

The actor appeared in 'Less Than Zero' in 1987 without saying a single line. He was credited as "Partygoer/Preppie Guy at Fight."

Channing Tatum appeared in the music video for Ricky Martin's 'She Bangs' in 2000. He was also an extra in 'War of the Worlds' in 2005.

John Wayne might be one of the greatest Hollywood stars in history, but he was not credited for his role in 'The Draw-Back' in 1927.

Before his breakthrough role as Conan the Barbarian, Arnie worked as an extra in the 1973 film 'The Long Goodbye.'

Bowie can be seen in a bar scene in the 1969 British film 'The Virgin Soldiers.'

The 'Twilight' star was credited as "Girl in Fountain Line" in the 1999 Disney Channel movie 'The Thirteenth Year.'

The 'Ant Man' and 'Lost' actress can be seen in a high school scene of the 2003 horror movie 'Freddy vs. Jason.'

The 'Jurassic Park' and 'The Fly' actor first got a part as an extra in the Woody Allen movie 'Annie Hall' (1977).

A 13-year-old Heath Ledger can be seen working as an extra in the Australian movie 'Clowning Around' (1992).