Alright, so I just got back from watching this with my boys (ages 7 and 11). I enjoyed it even though it was a bit darker than the 80s movies of the same name. I was also a bit depressed that it wasn't live action or at least a mix of CG and live action but it wasn't too bad.

The hight point of the whole movie was hearing Mako as Splinter. All in all I'd say TMNT has grown up a bit...
And I'm not sure if that's the best thing in the world or not.

3 out of 5 stars.