munchies was pretty bad, and so was critters. but the one of the worst i have seen, i dont know if it would qualify as sci-fi, is Earth vs the Spider. horrible movie and the main selling point for the movie was dan ackroyd, and he was in the movie for only like a minute. i feel very jipped watching that movie and i could have had more fun watching paint dry or bashing my head in with a hammer. it was that bad.