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 "Leonardo DiCaprio"): DiCaprio began his career by appearing in television commercials in the late 1980s, after which he had recurring roles in various television series such as the soap opera "Santa Barbara" and the sitcom "Growing Pains".
Relevant evidence: No