What's wrong with this picture?

Aside from the fact that there isn't enough alcohol in Anaheim to get Katherine Heigl drunk enough to have sex with Seth Rogen, I mean.

And that running time. Two hours and nine minutes? Even a good romantic comedy outstays its welcome after 100 minutes.

"Knocked Up" positions itself as this summer's "40-Year-Old-Virgin." But it's actually this summer's "Jersey Girl," a tone-deaf skip down parenthood lane for a generation that grew up on bong hits, blogging and supposedly safe sex.

It may touch a nerve among the uncensored, the uncommitted and the irresponsible. It may even be a smash hit.

Rogen plays Ben, a charm-impaired, perpetually stoned Net-nerd living with his post-grad pals waiting to launch their novel idea of a Web site dedicated to documenting movie nudity - fleshofthestars.com. One of the movie's best jokes is that anybody drawn to the film will know there's already a site like that - mrskin.com.

Heigl, of TV's "Grey's Anatomy," plays Alison, an up-and-coming TV floor-director for E! television who's just been promoted to on-camera. Provided she loses weight. Not that her boss can come out and say that.

"We just want you to be healthy. By eating less."

The Web site loser and ambitious TV beauty hook up, after drinks. And weeks later, Alison gets the bad news. She's "with child," or as the crude, devoid-of-social-skills Ben puts it, knocked up.

Ben tries to bond with Alison's family (Paul Rudd, less funny than usual, is Alison's brother-in-law, Leslie Mann is her funny-shrewish sister).

Alison and Ben audition OB-GYNs, try to make a relationship out of an accident (they have nothing in common) and Ben comments, in the most tactlessly vulgar terms possible, about their/his predicament. Not that he isn't clinging like grim death to the hottest woman ever to glance his way.

"The 40-Year-Old-Virgin's" director Judd Apatow becomes the latest filmmaker to discover the wonders of pregnancy, as if he's the first father-to-be to ever experience it.

But the stars have so little chemistry that "Knocked Up" can seem nine months long, and not just two-hours plus.