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.
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Summit Entertainment
Fox buffed up to an extreme degree for the role of serial killer Picasso in the movie "Alex Cross," co-starring Tyler Perry as the title character and based off James Patterson's best-selling novel "I, Alex Cross."