Them! is a 1954 American black and white science fiction film about man's encounter with a nest of radiation-giganticized ants. It is based on an original story treatment by George Worthing Yates, was developed into a screenplay by Ted Sherdeman and Russell Hughes for Warner Bros. Pictures Inc., which was produced by David Weisbart and directed by Gordon Douglas for the company. It starred James Whitmore, Edmund Gwenn, Joan Weldon and James Arness.
One of the first of the "nuclear monster" movies, and the first "big bug" film, Them! was nominated for an Oscar for Special Effects and won a Golden Reel Award for Best Sound Editing. It is significant that the film starts off as a simple suspense story and works quite well in this regard, with police investigating mysterious disappearances and deaths, all from no explainable cause. The giant ants are not even seen until almost the halfway point in the film.