The aliens, seen in teasing bits and pieces, a green leg vanishing into the corn field, a scrawny arm with crab-like claws, are themselves unbelievably corny when revealed in their full onepiece jump-suits: they wouldn't qualify as a scare-ride attraction in an amusement park. But Mel's soon intoning, as every editorial writer did on the morning after 11 September, that "everything's going to change" in the world.