Most dramatic actor transformations

Published On: Oct 16 2012 02:53:40 PM CDT   Updated On: Oct 17 2012 01:00:00 AM CDT

Most of the time being a Hollywood actor is all about the glitz and the glamour, but occasionally actors have to go that extra mile to transform themselves for a role. Take a look at some of the most dramatic actor transformations ever seen on film.

dramatic movie transformation - Damon 2
43 / 54
20th Century Fox

For one of his earliest roles, that of a heroin-addicted soldier in the 1996 film "Courage Under Fire," Damon ate only chicken, egg whites, steamed broccoli and plain baked potatoes for months. He also ran 13 miles in total a day, dropping 40 pounds by the time filming began. He's said he lost so much weight that it actually caused unintended health problems for him for years after.

Upload Photos / Videos