15 of the unlikeliest action heroes in movie history
When comedy and drama stars turn to fist fights and shoot-outs
Hollywood action movies have long been a place where comedians can go to mix things up and "serious" performers can go to have a little fun and kick a little ass. But for every Bruce Willis and Will Smith -- whose move into action territory seemed like a natural career transformation -- there's a Jonah HIll or a Helen Mirren, whose presence in a shoot-'em-up makes audience do a double-take. Here are 15 unexpected action stars that tried to prove the naysayers wrong.
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