As you all know, alongside Sundance there's Slamdance, and Cinematical has just received this exclusive poster for William S. Burroughs: A Man Within, which is part of Slamdance's Documentary Competition. Yony Leyser's doc details Burroughs' life as a Beat author and icon, and includes not only never-before-seen footage, but also a narration by Peter Weller, a soundtrack by Sonic Youth and the Patti Smith Group, and interviews with a whole lot of interesting folks like John Waters, Patti Smith, David Cronenberg, Amiri Baraka, Gus Van Sant... You can see the whole list on the poster in the gallery below, which includes not only the interview list, but of course -- a cat. As fans know: "A cat's rage is beautiful, burning with pure cat flame, all its hair standing up and crackling blue sparks, eyes blazing and sputtering. "

Burroughs at Slamdance + Ginsberg at Sundance ... it's a good, Beat-filled month to be in Utah. The film is screening Friday, January 22, 5:30 PM at the Main Screening Room, and Wednesday, January 27, 7:30 PM at the Gallery Screening Room.

Check out the full synopsis after the jump.