Was The Simpsons Movie a letdown? Please read my personal opinion and thoughts of The Simpsons.?

Yes its true, but this things really happen... time has finally caught up with the simpsons, but still the movie made me laugh and I think they've done a good job, Although the supporting characters has a very little participation in the movie, I mean I've seen more of the ie lady than the other characters (can you guys tell me the part where Side Show Bob appears I must have missed him) But I do hope they would release another movie.