Celebrated actor Leonardo DiCaprio is co-writing, producing and narrating a feature-length documentary film about global warming to shine a spotlight on what he considers "one of the most important issues facing all of humnity." The film, scheduled for release in 2006, is DiCaprio's latest attempt to raise public awareness of key environmental issues.

_{Photo: Leonardo DiCaprio as Howard Hughes in "The Aviator"
© Miramax Films}