The Simpsons Movie (USA, 2007)
Directed by David Silverman
Starring Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith
It's very easy to make a bad adaptation of a much-loved TV series. British sitcoms have an especially poor record in this field, with the majority of adaptations feeling like extended episodes with none of the pacing or discipline of the original series. Whether you're trying to satisfy existing fans with a more expansive story, or trying to sell the characters to an unfamiliar audience, it is very, very easy to come a cropper when putting the small screen up on the big screen.
Cinderella a pass in spite of strong reservations about the messages it sends. With Cinderella, the film's visual beauty and entertaining supporting cast were enough to remedy or at least overlook its central problems. The Simpsons Movie succeeds for a simpler reason: it's funny.
Logan's Run or Lord of the Flies with jokes, you won't find them. But by containing the action, at least for the majority of characters, it prevents the film from going totally off the rails like so many of its predecessors.
* I elaborated on this problem in an article for WhatCulture! on the mean-spiritedness of modern comedy. You can read the original article via my blog post here.