Charlize Theron
The South African beauty packed on the weight and prosthetics to play serial killer Aileen Wuornos in "Monster."
Andy Serkis
Serkis is the king of motion capture, which makes his critters like Caesar in "Rise of the Planet of the Apes" and good old Gollum especially eerie.
Brad Pitt
The Curious Case of Benjamin Button.
John Hurt
John Hurt looks unrecognizable in The Elephant Man.
Ron Perlman
From Hellboy.
Doug Jones
Pan's Labyrinth.
Eric Bana
Chopper.
Tom Hardy
Star Trek: Nemesis.
Christian Bale
The Fighter.
Robert De Niro
Raging Bull.
Joseph Gordon-Levitt
Joseph Gordon-Levitt portrays the younger version of Bruce Willis in Looper.