Mixed feelings.... First off...I do like this kind of movie, and as stated by others, knew this wasn't going to be Oscar material. I expected a genre piece with thrills, humor, bad dialogue, weak characters, etc. Basically-cheap thrills. Well...it succeeded, but did not really go beyond that. The 3d was underwhelming, the plot was average and not really that interesting, and it was actually kind of slow the first half. I am glad I did not pay full price. It would have been just fine as a late night offering on Cinemax. A few cuts above a SyFy Saturday flick, but not a whole lot. Funny, because I watched "Frankenfish" on TV earlier today, and it was nearly as good as Pirahna! Now, I don't mean to sell it short. I would see this kind of movie any day over "Eat, Pray, and Vomit", but I was expecting a bit more. All the best stuff was in the preview including the "surprise" ending. Just my 2 cents.