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Biggest Celebrity Weight Loss Transformations!

Zach Galifianakis

The Hangover star Zach Galifianakis showed up to the screening of his film Birdman Or The Unexpected Virtue Of Ignorance at the closing night of the New York Film Festival on Sunday, Oct. 12, 2014, looking like he'd dropped some serious lbs. Though the funnyman didn't comment on his weight loss-- which is estimated to be about 50 pounds-- he did speak on how uncomfortable being famous makes him.

"Being a celebrity is s**t -- it's dumb, and I'm not interested in it," he said at a press conference for the film. "I like to be an actor, and that's it. The blurred lines are, I think, man-made. I think celebrity is a man-made thing; it's not innate in us…I'd rather just do my work and go home and watch Lifetime."

Click the pics for more major celebrity weight loss before and after shots!

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