Overall, I'd rate the movie very good, mostly on the strength of the story. Kids are usually easy to please, and they'll probably find the movie excellent. Adults are harder to please. Where _Shrek_ emphasizes pop culture references for adult appeal, this movie targets adults' memories of childhood, effectively drawing adults into enjoying it like the kids in the audience.
Credits: There are a few additional scenes after the credits begin. Don't run out right away. Stick around at least until the fine-print credits roll.
Personal appearances: The director, Gil Kenan, and a couple of the producers (I don't know which ones, but not Spielberg or Zemeckis) were there. The director took questions from the audience, and answered very enthusiastically -- he seemed like he was thrilled to see his film in front of a real audience, and not burned out from hearing the same questions over and over. He was really nice to the kids in the audience, and behaved like he was new to the experience of being the center of attention. He signed lots of autographs (including one for me), and seemed genuinely pleased that people cared enough to ask. That's a reaction that one might expect for the director of something obscure, but uncommonly nice for the director of a big-budget summer movie.
The US rating is "PG", for some scary scenes and (supposedly) "crude humor and brief language". The crude humor is minimal, compared to typical movies aimed at kids. I can't think of any inappropriate language.(Author: Steve Schonberger)