Them! is a 1954 American black and white science fiction film about a nest of gigantic irradiated ants. It is based on an original story treatment by George Worthing Yates. It was developed into a screenplay by Ted Sherdeman and Russell Hughes for Warner Bros. Pictures Inc., and was produced by David Weisbart and directed by Gordon Douglas. It starred James Whitmore, Edmund Gwenn, Joan Weldon & James Arness. (Wiki) ... as a kid i stomped ant mounds for weeks after this!