...apparently being shown before the abominable ICE AGE 2. Hope it's a damn sight better than that new episode Sky ran on Sunday, 'cus that was shit! Bring back Conan O'Brien!
Update! According to a rumour posted by "Krusty's nephew" over at AICN, the movie features "the return of all the original cast and writers", and has a plot revolving around "a goof by Homer at the power plant results in the government putting a dome over the city limits of Springfield". And thar ya go.
Oh, and a second, internet only (ie coarse as fuck) trailer for CLERKS II can be found here.