First of all, I think its silly how everyone is complaining about them being big and ugly. You have to remember- they are MUTATED reptiles. Are they really supposed to be slim and pretty?? Realistically speaking, no. Secondly, Bay didn't direct the film, he only produced it. Thirdly, just because Master Splinter isn't in the "teaser" trailer doesn't mean he won't be in the official one. Hey, maybe they won't even reveal him until the movie comes out! There's still hope that he's in the movie. And lastly, how can you tell just by the teaser trailer that April's father is Shredder? That's a lot of guessing.....