Mark Ruffalo and Jennifer Garner in 13 Going on 3013 GOING ON 30

When you watch a body-switching comedy such as Big or Freaky Friday, you know immediately that the movie is going to require a huge suspension of disbelief; these are comedy fantasies, after all, and bitching about logic and realistic plotting is the surest way to kill your good time.

Jason Statham, Brad Pitt, and Alan Ford in SnatchSNATCH

First, the bad news: Guy Ritchie's latest crime thriller, Snatch, is nearly a carbon copy of his sizzling 1998 debut film, Lock, Stock, and Two Smoking Barrels. The good news: Who cares? Those who like their thrills fast, bloody, twisty, and awfully funny will be in B-movie paradise here; we're only three weeks into January, and we already have a movie that's more enjoyable than 90 percent of what was released last year.

The Emperor's New GrooveTHE EMPEROR'S NEW GROOVE

Despite being saddled with a crummy title, Disney's The Emperor's New Groove turns out to be the studio's most sheerly pleasurable animated feature in ages. It appears to have been made not only for those of us who were sick to death of the tired old Disney formula, but by people who were sick to death of the tired old Disney formula; it attacks the studio's shopworn clichés with a vengeance that is both hilarious and utterly deserved.