Not "excellent", but not the "worst. movie. ever." either.

Rating: 4/10 (25 July 2007)

There is a handful of genuinely laugh-out-loud moments to rival the mid-90s seasons of the TV show, but there's an over-reliance on decade-old jokes ("Pray to Jebus" "BYE EVERYBODY!" et cetera) and an almost complete lack of the subtlety that made it transcend being 'just a cartoon' in the first place, but you sort of forgive these shortcomings because it's The Simpsons. Here's a tip; wait until later in its run when you won't be sat next to try to families with young children ("Look there's Itchy!" when Scratchy appears on screen at the start made me seethe pedantically, but maybe that's just me being a fifty-year-old inside a teenager's body) because it'll greatly increase your enjoyment of it.
It's beyond doubt that Futurama would have made a much more effective feature film by sheer virtue of it being the Groening creation less naturally constrained by the realms of possibility as well as offering more cinematographic scope and proved potential for genuine emotionally connectivity than the inhabitants of Springfield, but The Simpsons Movie isn't sacrilege by any means. Just don't expect to be rolling in the aisles.