Loved it but had 2 problems with it (spoilers)
1) There was no on-screen resolution between Charlie Brown and Peppermint Patty dealing with the fallout of the test being accidentally switched. I wanted to see a conversation or something.
2) When the book report got shredded, Charlie Brown walked away while the little red haired girl actually talked to him, inviting him to fix the report. I understand that Charlie Brown could have been so distraught that he didn't hear her talk to him but why did the movie cut to about 3 months later to the end of school before he and the little red haired girl had a conversation? I find it hard to believe that NOTHING happened in those 3 months. That there was NO opportunity to have a conversation. Even if Charlie Brown felt he couldn't talk to her, Linus could have convinced him within a weeks time at least. The story should have wrapped up well within winter.
Other than that, I loved the film. It made me laugh and remember fondly the comics. Snoopy was great!