It's the number one movie at the nation's box office, but the critics hate it and the audience at the local matinee showing this weekend sat there stone-faced (except for the father desperately trying to explain the "jokes" to his young son).
I'd say "If you've seen the trailer, you've seen the best parts," except the trailer pretty much indicates how lousy the movie will be.
What's most amazing to me is that, with its "anything goes" attitude unhindred by plot considerations, the film still has trouble getting from one joke to the next. The punchlines don't fly fast and furious; you have to wait through the laborious set up each and every time, which consists of seeing a scene you recognize from some other film. And then something happens that's not really a spoof of the scene in questions; it's just supposed to be funny because...well...just because.