Most dramatic actor transformations

Published On: Oct 16 2012 02:53:40 PM CDT   Updated On: Jan 23 2014 08:57:57 AM CST

Matthew McConaughey and Jared Leto are receiving buzz during awards season for their dramatic transformations in "Dallas Buyers Club." Take a look at some of the other most dramatic actor transformations ever seen on film.

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Mario Anzuoni/Reuters

Thanks to physical roles in movies such as "Invictus," "Green Zone" and the "Bourne" movies, Matt Damon has become known for his fit physique. But he has shown the willingness to change that up for roles.

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