Dailies | Sneak Peek: Bradley Cooper's ‘Limitless’ (Video)

Robert De Niro co-stars in the upcoming thriller

Bradley Cooper and Robert De Niro co-star in "Limitless," an upcoming thriller about a writer who pops a smart pill that makes him super successful. But after climbing to the top of the heap, paranoia ensues. "Limitless" hits theaters March 18, 2011.