It's no secret that most celebrities use stunt doubles when filming particularly challenging scenes, but it's not something we always remember when caught up in the energy of an action-packed movie. Here are the people that you really saw jumping off buildings and fighting bad guys in your favorite movies.

Chris Hemsworth
Chris Hemsworth
For all those godly muscles, Hemsworth still couldn't fully embody all of the superhuman stunts expected of the Norse god Thor in the self-titled film, and "The Avengers."
Robert Pattinson
Robert Pattinson
"Twilight" is viewed as mostly a love story, but there are actually a lot of stunts involved in the vampire drama. For those more intense scenes, Pattinson brought in his look-alike stunt double.
Taylor Lautner
Taylor Lautner
Although Lautner is trained in martial arts, he still needed some help from a stunt double on the set of the "Twilight" films.
Shia LaBeouf
Shia LaBeouf
LaBeouf must have taken the title of "Transformers" literally, because he was prepared to transform into a different person for his stunt scenes. It looks like they're having fun here.
Quvenzhane Wallis
Quvenzhane Wallis
Did you know that you weren't always watching a little girl dancing around in the new "Annie" movie? Quvenzhane Wallis had an adult stunt double help her perform her more difficult dancing numbers.
Carrie Fisher
Carrie Fisher
Fisher really bonded with her Princess Leia stunt double fast on the set of the "Star Wars" films. Here they are hanging out both in their iconic costumes.
Andrew Garfield
Andrew Garfield
Like Tobey Maguire before him, Garfield made use of a stunt double when filming "The Amazing Spider-Man."
Johnny Depp
Johnny Depp
Although Depp did a ton of character work to prepare to play Captain Jack Sparrow in "The Pirates of the Caribbean" films, he still needed a stunt double for Sparrow's more daring escapades.
Dwayne Johnson
Dwayne Johnson
The Rock may be one of the most ripped guys in the world, but even he needed some help with his stunts in "Pain & Gain." This guys definitely has Johnson's famous eyebrow game down.
Mark Wahlberg
Mark Wahlberg
How do you think they cast Mark Wahlberg's stunt double for "Ted 2"? He definitely looks older, and a little less in shape.
Brad Pitt
Brad Pitt
Unlike his wife Anglina Jolie, who does her own stunts, Pitt needed help with the extreme parts of "World War Z." The stunt double even had to wear a wig to replicate Pitt's long hair.
Tom Cruise And Cameron Diaz
Tom Cruise And Cameron Diaz
The action movie "Knight and Day" involved way too many dangerous stunts for Tom Cruise and Cameron Diaz to perform on their own. Here they are giving their stunt doubles some pointers on how to be them.
Jennifer Lopez
Jennifer Lopez
In one of the most bizarre stunt double moments, Jennifer Lopez had a male stunt double help her out for her "Follow the Leader" music video. That's right — that was a guy dancing around for some shots of the video!
Megan Fox
Megan Fox
Like LaBeouf, Megan Fox used a stunt double in "Transformers." They really do look like twins!
Patrick Dempsey
Patrick Dempsey
Along with Shia and Megan, Dempsey made use of a stunt double in "Transformers" as well.
Natalie Portman
Natalie Portman
Portman is talented in many ways, but she needed some help with the ballet scenes in "Black Swan."
Daniel Craig
Daniel Craig
As a James Bond movie, "Skyfall" included various action scenes. Craig made a great James Bond, thanks to the help of his stunt double.
Uma Thurman
Uma Thurman
"Kill Bill" was one of Uma Thurman's most famous films. Here she is hanging out with her stunt double who helped with the various fight scenes.
Harrison Ford
Harrison Ford
Ford was nice enough to sign this photo for his "Indiana Jones" stuntman, Vic.
Bruce Willis
Bruce Willis
Willis is an experienced action star, but even he needed a stunt double for his movie "Red."
Sacha Baron Cohen
Sacha Baron Cohen
Cohen wasn't the only guy wearing ridiculous costumes on the set of "The Dictator." His stunt double wore all the crazy stuff that he did.
Anne Hathaway
Anne Hathaway
Hathaway is known for her roles in comedic and dramatic roles, so it was pretty shocking when she took the action-packed part of Catwoman in "The Dark Knight Rises." Her stunt double helped a lot in her combat and motorcycle scenes.
Lena Dunham
Lena Dunham
You might not think that "Girls" includes a lot of stunts, but Dunham still has a stunt double on hand who has helped with some of her more dangerous scenes.
Reese Witherspoon
Reese Witherspoon
Reese Witherspoon is filming for new comedy film with Sofia Vergara that will either be called "Don't Mess With Texas" or "Hot Pursuit" in which she plays a police officer. Here she is with her stunt double for the film.
Jason Sudeikis And Jennifer Aniston
Jason Sudeikis And Jennifer Aniston
A whole lot of crazy stuff happened in the film "We're The Millers," so it's a good thing Sudeikis and Aniston had stunt doubles to help them out.
Mark Ruffalo
Mark Ruffalo
The magical film "Now You See Me" did a great job casting Ruffalo's stunt double. They really do look like the same person!
January Jones
January Jones
She stole my look! No, not really. This is just Jones and her stunt double on the set of "X-Men: First Class."

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