Support WBURMovie Review'Fish Tank': A Teen Adrift In A Tough London SuburbPlay09:02Download AudioDavid EdelsteinJanuary 15, 2010 ShareFirst-time actress Katie Jarvis plays 15-year-old Mia, a confused and troubled teen. Critic David Edelstein says casting a nonactor can sometimes be just a stunt — but director Andrea Arnold hit the jackpot with Jarvis. (IFC)