The Teenage Mutant Ninja Turtles are back, and their new animated flick is for diehard fans only. How do we know? The film's title is simply TMNT. Though I'm sure Will Shortz could figure that out, methinks this isn't the movie for him. Anyway, kids today and the grown-up kids raised on the '90s cartoons may enjoy this for nostalgic reasons, but it's really just another crappy movie about a dimensional portal sending monsters into our world. The Turtles, under the zen guidance of a rat named Splinter, must stop squabbling with each other long enough to kick the monsters' asses. The CGI works well for the Turtles and the cityscapes, but not so well for the humans or anything else. A noisy, muddled action-fest, TMNT takes its campy source material far too seriously.