The film's poster was ranked #8 on "The 25 Best Movie Posters Ever" by "Premiere" magazine.
The giant bald space alien is played by Michael Ross. He can also be spotted playing the bartender.
This film was made right after the success of "Sputnik", the Russian space satellite. The alien spacecraft is called a "satellite" because the writer thought that meant any spherical-shaped spacecraft.
Both of the film's leading ladies met with unfortunate ends. Allison Hayes died at the age of 46 due to lead poisoning from calcium pills she had been taking, while Yvette Vickers' mummified body was discovered in her home in 2011. Although she was 82, the evidence suggested that she had died of natural causes and the body lay undiscovered for over a year.
According to Yvette Vickers, the suggestion for her sexy dance came from Frank Chase, brother of dancer Barrie Chase, who played Deputy Charlie.
Director Nathan Juran insisted on being billed as "Nathan Hertz" (Hertz was Juran's middle name), apparently because he was embarrassed by this film's low budget and poor quality.
An early '50s GM woodie was destroyed instead of the '58 Plymouth wagon. That woodie wagon would be actually worth ten times the value of the Plymouth in the 2015 market.
Several years after this film was made, the Woolner Brothers planned to do a bigger-budget sequel that would be shot in CinemaScope and color. A final script was written and printed, but the film never went into production.
The ad for this movie was designed by Roger Corman and is in the Museum of Modern Art's permanent collection.
Made to piggyback off the success of similarly themed films that were popular at the time, The Amazing Colossal Man (1957) and The Incredible Shrinking Man (1957).
The 50-foot woman does not make her first appearance (other than a brief glimpse of her giant hand) until 56 minutes into the movie.
[Yvette Vickers admitted that her dance was inspired by Rita Hayworth's famous dance scene from Gilda (1946).
Generally regarded as one of the worst sci-fi films ever made, though conversely it's also regarded as one of the more enjoyable examples from the "So Bad It's Good" genre.
Nancy Archer's car is a 1958 Chrysler Imperial convertible. The sheriff's car is a 1958 Plymouth. His station wagon is also a 1958 Plymouth.
In the mid-'80s schlock director Jim Wynorski considered remaking the film with Sybil Danning in the lead.
The beeping sound from the alien spacecraft is the same sound used in The Amazing Colossal Man (1957) during the bomb test.