Trivia

This was broadcast on television as a late-night movie on the evening of June 17, 1972, during the notorious Watergate burglary in Washington DC. If Alfred C. Baldwin III (who was watching this film in his room of the nearby Howard Johnsons hotel across the street as a lookout for the Watergate burglars) had not been so engrossed in a broadcast of this film, he might have sooner warned his colleagues of the three plainclothes police detectives who arrived at the building and made the historic arrests.

In the scene at the drive-in, Bob and Sally see an earlier Bert I. Gordon film, The Amazing Colossal Man (1957).

This film was rushed into production by American International and Bert I. Gordon to ride the success of Universal-International's The Incredible Shrinking Man (1957).

Director Bert I. Gordon's daughter, Susan Gordon, was a last-minute substitute for another actress who was ill and unable to work.

When the miniature subjects were trying to call the local Police Dept only one remembered the number (thankfully). Calling 911 as an emergency number wasn't passed by Senate for another 14 years in 1972.