This comedy about a couple who can't get pregnant is stuck between Judd Apatow's humane raunchiness and the American Pie series' smirky broadness.

Overall, Chandrasekhar's first tentative venture towards something slightly more sincere is undermined by, quite frankly, his irresistible urge to take the piss out of every sequence that might have been played even remotely seriously.

It's raunchy/sweet in the "American Pie"/"40-Year-Old Virgin" tradition, and as dynamic as a glob of lazy sperm.

Munn has proved on TV that she has solid timing, but she does little here other than look pretty and, when the plot calls for it, outraged. As for the likable Schneider, the "All the Real Girls" actor demonstrates that he's better off as a straight man than as a physical comedian.

The zippy screwball energy - and fantastic roster of cameos - that mitigated the fratty humor of Broken Lizard's last movie, the restaurant send-up "The Slammin' Salmon," is missing here, resulting in generic, feeble laffs and an ending as sticky as the pilfered substance.