Question: Name the American actor, film producer and environmentalist activist who co-wrote the '11th Hour', a 2007 documentary film about the state of the natural environment, distributed by Warner Independent Pictures?
Sentence (from "A Scanner Darkly (film)"): The film tells the story of identity and deception in a near-future dystopia constantly under intrusive high-tech police surveillance in the midst of a drug addiction epidemic.
Relevant evidence: No