...
... well the humour aspect was started poorly (the first two scenes), but more than made then made up for it from the episode 1 onwards, when it's pretty dammed funny!
Technically it's a mixed bag, with pretty good drawings and solid animation, proper use of sound effects, but you really need to get better voice acting! The voice actors you used were pretty poor and it really detracted from the movie (you should go to the NG forums and search for the voice acting club, they have some solid voice actors over there).
So overall, pretty well made and funny, but with a naggling detail (the voices) that took away some of the movie's thunder.