THE SWITCH Since it's a romantic comedy starring Jennifer Aniston that actually doesn't suck, it's temping to overrate The Switch, which opens with Aniston's Kassie preparing to be artificially inseminated, and BFF Wally (Jason Bateman) - who secretly loves her - swapping her sperm donor's donation for one of his own.

PIRANHA 3D Alexandre Aja's Piranha 3D puts you in the unexpected position of actively rooting for the piranha, not because the effects are all that great (they're actually pretty awful), but because more flesh for the fish means fewer irritating humans to put up with.