Dark Days is an American documentary film directed, produced, and photographed by the English documentarian Marc Singer that was completed and released in 2000. Shot during the mid-1990s, it follows a group of people who lived in the Freedom Tunnel section of the Amtrak system at the time. DJ Shadow created new music for the documentary and also let Singer use some of his preexisting songs.

Joshua Paul Davis, better known by his stage name DJ Shadow, is an American DJ and record producer. His debut studio album, Endtroducing....., was released in 1996.