It is called Fantastic Fest, and porn is pretty fantastic, so I guess it's a perfect match: Kevin Smith's new comedy, Zack and Miri Make a Porno, will have its U.S. premiere as the opening-night film at the raucous genre fest in Austin on Sept. 18. Smith will be there to introduce the film and take questions afterward, so start coming up with good Jersey Girl zingers now.

Afterward, they're holding the Air Sex World Championships there at the Paramount Theater, and audience members are invited to join. Air Sex is like Air Guitar, only dirtier, and requiring less musical ability. If you wanted more proof that Fantastic Fest is not your typical film festival, there you go.

Zack and Miri stars Seth Rogen and Elizabeth Banks as platonic friends who decide to raise money by making a sex tape; hilarity ensues. Smith has promised that the film is the filthiest thing he's ever done, which is no minor feat. The film opens theatrically on Oct. 31.

Fantastic Fest runs Sept. 18-25. The Zack and Miri gala is part of the package for badge holders, and individual tickets will go on sale this Saturday. Check out the fest's website for more details, then prepared to get really bummed if you can't go. I've only been to Austin for South By Southwest, and while that's always a raging good time, I'm jealous of the Cinematical crew that gets to indulge in Fantastic Fest. Maybe if I ask Scott Weinberg really nicely he'll bring me back a severed-head prop or something.