This movie may be the last in the recent string of nostalgia films to revive the shows of the late 80's and early 90's. Like Transformers and Die Hard, the screenplay is one big cameo by over 100(maybe more) Simpsons characters doing the things that they usually do.
Without knowing what the official ratings were, I can tell you that the online comments were mixed, some saying that the movie was a great time, and others saying it's a waste of money. For me, it didn't live up the hype. It had nothing special to offer in terms of animation or story, and I thought that this might have been a really great movie 5 years ago but lies below the standards of today.
So what was Matt Groening thinking when he approved the production of this movie? Having spent most of his time producing pallid shit like Futurama, the franchise of The Simpsons was a thing of the past and has long been buried by more modern franchises like Family Guy and American Dad. To make up for that, the movie had to be aggressively advertised to close the time difference, yet ended up creating nothing new. The film directors knew this and did their best to compensate, so they decided to flash you with Bart's dick.(NOT shown here)
Animation: 60%
Story and Sense: 60%