I saw the title and assumed it would be terrible. Then I watched the previews for it and thought it would be worse. But honestly, compared to other spoof movies that have come out, it's not that bad. It does have a story, that is based off of a bunch of other stories and the jokes are immature, but it is entertaining. I guess the reason I give it a high rating is because I had low expectations, due to the other spoof movies, and it kept me entertained and pleasantly surprised. If you are reading reviews to decide whether or not to watch this movie, I'd say don't expect to much from the movie, just watch it if you're looking for some cheap laughs.
