I'm glad I'm not the only one that didn't like this movie that much!
I have come to the conclusion that it is hard for me to say a movie is bad. A movie with such a decent cast, including our favorite character from American Pie, and this movie was just rubbish! I was trying to like it because I know the hard work that goes into making a movie and such, but I have to lighten up a bit!
The review(s) of this movie on IMDB are exactly as stated; the funny parts are all in the trailer and the rest is just a filler.
BTW, just out of curiosity, wouldn't a gym teacher be a pedophile if he made a child take his clothes off the way he did in the beginning? I found it really disturbing and NOT funny...