Fans of '50s-era sci-fi movies would be well advised to stock up their Netflix queue with the originals rather than checking out director R.W. Goodwin's technically expert but dreadfully dull parody. Although it's refreshing that "Alien Trespass" doesn't indulge in the sort of mindless, gross-out humor that afflicts so many current cinematic spoofs, it errs too much on the other side, offering mere pastiche instead of witty satire.