After having seen the new movie, TMNT, twice (the first time was marred by technical difficulties resulting in missing the first 15 minutes of the film), i can say that
it is a MUST see film for any true Ninja Turtle fan!
Having initially had doubts because of the recent shit-house cartoon series, I was still willing to see the movie because TMNT are a huge part of who I am.
The film has little to no connection to the 2003-2006 series
http://en.wikipedia.org/wiki/Teenage_Mu ... _series%29 +
http://imdb.com/title/tt0318913/fullcredits#writers
Different screenplay writers, different cast, etc. More in the spirit of the '80s cartoon, but really something that stands alone. It's set after the defeat of Shredder too, so it's not just rehashing the same old story lines. Personally, I found that to make it more interesting (I like it when fictional worlds actually acknowledge that time passes).
Anyways, here's something interesting too...
Before Kevin Munroe was hired as director and writer, Munroe first had to gain the approval by Turtles co-creator Peter Laird. Not knowing if they'd ever meet again, Munroe brought an original copy of the first issue of the Teenage Mutant Ninja Turtles comic book for Laird to sign. After spending a day discussing his ideas with Laird, Munroe left the meeting unsure if he would get the film. Later, he would open the comic to see a drawing Laird had done of Raphael, one of the turtles, with the words "Dear Kevin...make a good movie...or else."
http://en.wikipedia.org/wiki/TMNT_%28film%29
http://imdb.com/title/tt0453556/fullcredits#writers
Anyways, see it and make up your own mind.