You probably know Justin Kirk best as Andy from 'Weeds,' but now he's taking his talents to the track with funny man David Arquette. In 'The Legend of Hallowdega,' the duo head to Alabama to explore the history, tradition and urban legends surrounding the famed Talladega Speedway. Normally, this sort of thing would be written off as a run-of-the-mill "mocumentary," but with director Terry Gilliam in the mix, it's set to be one hilarious adventure. We caught up with Justin to get his take on the movie as well as what it was like working with David and Terry, and he even gives us a sneak peek into the last few episodes of 'Weeds.' Check out our exclusive interview after the jump.