Bradley Cooper's fame skyrocketed after The Hangover, and in Limitless, he headlines a film solo for the first time. In the movie, Bradley plays a down-on-his-luck writer who gets a huge adjustment when he starts taking a drug that allows him to use 100 percent of his brain. On the set of the film, Bradley talked about playing a different kind of character, discussed the film's wonder drug, and explains why the role is his best one yet. Watch the interview, and be sure to check out five things Bradley revealed that you might not know about him.
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