Not great, after school special-y. I can't imagine anyone who would watch this without watching the show. If you have watched the show then it is more of the same. Just one big episode really.
Very similar to the show, violence done in a way as to not offend anyone.
Annoying voices, good-ish music. This mirrors the shows sound production.
Same as the show. Exactly the same, just a feature length episode really to get more money.
Just O.K. It is like reviewing a single episode of the show. If you have watched the show then you can guess what is going to happen. Likewise the converse is true.