Them! (1954) Movie Pressbook

Here's the 20 page pressbook for Them! And some interesting tidbits from the Wikipedia article on the movie: 

• Actor James Whitmore wore "lifts" in his shoes to compensate for the height difference between himself and James Arness. It has also been noted that Whitmore employed bits of "business" (hand gestures and motions) during scenes in which he appeared to draw more attention to his character when not speaking.
• The Wilhelm scream, created three years earlier for the film Distant Drums, is used during the action sequences: when a sailor aboard the freighter is grabbed by an ant, when James Whitmore's character is caught in an ant's mandibles, and when an overhead wooden beam falls on a soldier in the Los Angeles storm-drain sequence.
• The giant ants were constructed and operated by unseen technicians supervised by Ralph Ayers, and were actually purplish-green in color. During the climactic battle sequence in the Los Angeles sewers, there is a brief shot of one ant moving in the foreground with its side removed, revealing its mechanical interior. This blunder has been obscured in the DVD releases of the film. (Wow, I've seen this movie a few times and never noticed. Will be looking next time.)