Anna Friel is in negotiations to join the cast of "
Dark Fields," Neil Burger's thriller for Relativity starring Bradley Cooper.
The story centers on a down-and-out writer (Cooper) 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.