Tim Blake Nelson wrote and directed Leaves of Grass, which is screening at SXSW this year. He also stars in the film, alongside not one but two Edward Nortons. Norton plays twin brothers Billy and Brady in this movie, which he says is pure Tim Blake Nelson. He's Jewish and from Tulsa, and like Billy, he's classically trained and intellectual, but like Brady, he's familiar with the world of pot growers and under the table deals. The film also stars Keri Russell, Richard Dreyfuss, Susan Sarandon, and a very creepy-looking Steve Earle.

We spoke to Norton and Nelson about the film, which is highly recommended, if not for Norton's portrayal of Brady alone. What starts out of a light comedy takes a 90 degree turn and winds up somewhere unexpected, and is well worth your time. Head on through the break to find out how the film started, where Norton developed his Oklahoma accent, what Nelson thinks about the turn and more.