Browse Movies : 2011 : Robert De Niro : Action

The story centers on a down-and-out writer who gets his hands on a top-secret pharmaceutical drug that makes one smarter. He experiences sudden financial and social success but soon discovers that the drug has lethal and lasting side effects, including "trip-switching," a phenomenon in which time moves with a stop-motion quality. Before long, mysterious antagonists are pursuing him.

Recounts the true story of an elite group of vigilantes drawn from the ranks of England's select paramilitary operatives, who were charged with eliminating four contract killers so deft that their hits appeared to be merely accidents.