According to South by Southwest’s Web site, Matthew Vaughn‘s upcoming fanboy comedy Kick-Ass will open the festival when it begins March 12. The movie follows average teen Dave (Aaron Johnson), a comic-book fanatic who becomes a real-life superhero. Lionsgate will open the film April 16.

A few other titles were announced for the 2010 SXSW, including Aaron Katz‘s new feature, Cold Weather; a doc on Motörhead frontman Lemmy Kilmister; and a doc by James Franco that takes a behind the scenes look at creating an episode of Saturday Night Live.

The festival will run from March 12-21.