1) It being supposed to be a laughter movie - attracts family audience in large proportions. But some scenes in the movie do not serve this purpose therefore leading to some negative points against the movie in a way.I think there are more audiences lost in India especially rather than gained!
2) Putting highly illogical sequences- Which can be made more logical like in Hungama (what sequences..wow!!!!) and contributing to the success of the movie. This I think is the most imp. step to trash a potential good comedy. (Of course we cant expect all movies to be as brilliant as hungama.)
3) Unnecessary confusion- Confusion is welcome and is really effective in comedy movies to a certain extent.But these days people just put it for the heck of it without any reason.
This just destroys the story line really.
In all it is a movie that had a good idea but was not out on the screen the way it should have been. It had good potential otherwise!