The Simpsons in widescreen with shadows and a movie plot arc. Sure, it's funny; but then so are the TV episodes. One of the few brands I don't mind being plastered everywhere. I don't want to say more because the jokes lose some of their impact if you've heard about them before you see the film. Try to avoid the teaser clips if you haven't had a taster already.
Nugget: if you sit through the credits you will be rewarded with a Springfield anthem to the tune of La Marseillaise and Maggie's first word.