Been years since I've seen that movie!
And speaking of old SF movies, remember The Blob with Steve McQueen? THAT is a classic!
Oh crikey, and then there was the one about these funky aliens with long dagger like fingernails and they inject alcohol into cows and make them drunk. One gets hit by a car and its hand separated and the hand lands in the back seat and it keeps crawling up the back of the seat and just as it's going to jab our hero who is driving, he hits a bump and it falls back to the floorboard and then crawls up again... A free cheeseburger to whomever can tell me the name of that movie.