Before the Flood | PG | 2016 | Documentary | 1h 36min. Actor Leonardo DiCaprio meets with scientists, activists and world leaders to discuss the dangers of climate change and possible solutions. Release date: October 21, 2016 (USA) | Director: Fisher Stevens | Screenplay: Mark Monroe | Music composed by: Trent Reznor, Atticus Ross, Mogwai, Gustavo Santaolalla | Producers: Fisher Stevens, Brett Ratner, Trevor Davidoski, Jennifer Davisson Killoran, James Packer.