Leonardo DiCaprio's new documentary on climate change is due in New York and LA theatres October 21 and will debut on the National Geographic Channel October 30. Before The Flood now has its music in order as well, as it has been announced that Trent-Reznor and his longtime collaborator Atticus Ross have joined Mogwai and composer Gustavo Santaolalla. Together, they'll soundtrack the project, which will also get an album release.

"Reznor, Ross, Santaolalla, and Mogwai become one voice in capturing the emotion and feeling of Leonardo DiCaprio's journey to understanding where we stand in terms of climate change, how far gone we are, what can we do about solving this issue and why people are still resistant to understanding how important it is,” the film's director, Fisher Stevens said. This should be good.