Extremely disappointing, funniest movie I've ever seen

Rating: 9/10 (26 July 2007)

This movie is hilarious. The trailers ruined a few of the jokes, so I'm not sure how funny those were, but rest assured that you will likely be laughing for most of the movie, included many cases where you're still laughing when the next great joke appears. This was to be expected.
However, there are also problems you should be aware of. Particularly, the movie's small cast, by which I mean the fact that most of the minor characters Simpsons fans have come to love have at most a one-liner, sometimes not even that. And for those who haven't heard yet, Sideshow Bob was completely cut. Homer's pet pig in the beginning of the movie has about as much screen time as the rest of the minor characters. The only exceptions are Ned Flanders, who has a role in Bart's subplot, Grandpa, with a role in the first ten minutes, and two one-time characters, Collin, involved in Lisa's subplot, and Albert Brooks as the villain.
Another problem is the pandering to non-Simpsons fans, specifically teenagers. There are numerous incidents of crude, often sexual humor, which are not funny to any Simpsons fan/person who's grown up. This includes such scenes as Bart's streaking scene, which was influenced by Austin Powers. If you thought Austin Powers was funny, feel free to ignore this comment.
The last problem is the plot. To justify a movie, they feel the need to have an elaborate and epic plot, and predictably ended up with a silly plot that doesn't really aid the movie (which is mostly composed of unrelated gags).
Why do I give it a 9/10 anyway? Because it's so funny, there are so many laugh-out-loud moments, that those problems are irrelevant. More use of side-characters would have been liked, but the movie doesn't need them to be hilarious. There are numerous crude and unfunny jokes, but that comes from a pie of so many jokes that there are plenty of hysterical ones to go around. The plot is superfluous, but not detrimental. In short, it's still the funniest movie around.
Note: One more problem - I dislike the use of Maggie. Ever since she shot Mr. Burns, it's gone to the writers' heads. In this movie, they seem to have forgotten that she's a baby, and have expanded upon the end of "Papa's Got a Brand New Badge". Maybe they're trying to mimic "Family Guy"; I don't know. But I want the baby back!