The reviews have been terrible because it's not a 'critics' movie. It's a fan movie. If you liked the TV series, are an anime fan, or can put aside your "is this a good movie?" attitude and just enjoy it, you will be pleasantly suprised. I know I was. I had VERY low expectations going to see it, but it turned out to be pretty enjoyable. Just don't expect it to be something it's not.
