Bradley Cooper shocked everyone when he debuted his larger figure for his latest film—he was almost unrecognizable!
Within the same time period, Neil Patrick Harris debuted an opposite look—a much slimmer figure.
These two aren't the only Hollywood men who have changed their size for a new project. Hugh Jackman, for one, is always either bulking up or slimming down. And then there's Matthew McConaughey who lost almost 40 pounds for Dallas Buyers Club.
Not all men will win an Oscar for their dramatic change and outstanding performance, but they're worth being recognized.
Check out the men who have either lost or gained weight for parts.