I liked the first two real films too, the third was a bit silly it has some of my favourite film quotes in though :p
(A turtle falls on to its back) "Help im a turtle and I can't get up"
and
(Three men walk in to a room and look very confused that the turtles are there) "What were you expecting, the Adams family?
:p I can see why people felt that TMNT was boring, the beginning when they explain the story does drag on a bit, I always feel the first few minutes make a film... I thin they kind of ruin it for people