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 "Uncle Henry's Playhouse"): Uncle Henry's Playhouse (released in the UK as Uncle Henry's MindBlower) is the third game in the "The 7th Guest" series.
Relevant evidence: No