6 Limitless clips show you how your brain is better on drugs

Six clips from Neil Burger's drug-centric thriller Limitless demonstrates why it might be better for some people to stay on drugs. Watch Bradley Cooper go from poor schmuck writer to slick, paranoid psycho!

Limitless, which is about "a copywriter [who] discovers a top-secret drug which bestows him with super human abilities," will be in theaters March 18th.