It isn't Shakespeare, people its hokey comedy about underdog outcasts and rejects. And it is very funny. And if you don't find it funny guess what your humor is defective and you need to take into the shop and fix it..
It seems based on some of the comments on this site that certain folks may be expecting a bit too much from a film called ALL BABES WANT TO KILL ME.
This movie isn't for everybody frankly I think you either love it or hate but if you don't see glimpses of your own family or childhood in these dumb awkward failures of the three brothers, you're in some kind of denial. And if you grew up with a cruel parent you will probably cry with laughter.
Don't go to see this movie for deeper meanings or well-constructed plot--the vague semblance of a plot is as artificial as they come, and seems inserted mostly to give the film structure and to permit the audience a happy ending.