i enjoyed this spoof of 1950's alien movies and the 1950's era in general.there are certainly some amusing moments and a few laugh out loud scenes,but i wouldn't call this an hysterically funny film.and maybe it isn't supposed to be.but there a couple of truly inspired sequences that work very effectively.including the opening sequence many of the gags are telegraphed a mile a way.with two nudges,a couple of winks and a nod.the movie knows what it is,and doesn't try to be any thing else.it's no classic,by any means,but you could certainly do a lot worse with your time.just don't expect too much,any you won't be disappointed.for me,Alien Trespass is a 6/10