The National are inviting filmmakers and fans alike to create a music video for the beautifully dark track, “Exile Vilify,” used in the video game Portal 2. The band is teaming up with Valve, the makers of the game Portal 2, for this unique contest. Participants should upload their videos to YouTube with the tag PORTAL2NATIONALEXILE. The contest runs until July 15th, so contestants should get moving. The winner will receive prize pack that includes an Eastwood guitar autographed by the band, as well as a collection of Portal 2 merchandise.