Mastodon recently spoke to Paste Magazine about their work scoring the upcoming film, Jonah Hex. The film is based on the Western/Sci-Fi comic book of the same name and features Josh Brolin, John Malkovich and Megan Fox.

They explained how it happened:

Just before crossing back over the Atlantic, Mastodon received a phone call from an enthusiastic fan. It was director Jimmy Hayward, who said he'd been inspired by repeated listenings of Mastodon's 2008 epic, Blood Mountain, and that said inspiration had helped him finish up a little project he was toiling over--the script for Jonah Hex. The album weighed heavily on Hayward, Sanders said, and so he wanted Mastodon to weigh heavily on his movie. "As opposed to labels profiteering the situation, saying they'd give a band $500,000 to use some song, he called us out of the blue as a fan," Sanders recalled. "It was the most beautiful, authentic way to collaborate."

Check out the interview here.