Filmed in August 1953, but not released until February 1954. Rumored to have been filmed in 3-D but only released in 2-D.
This was the first film credit for Roger Corman, listed as co-producer and co-author of the story. Corman, of course, went on to produce and/or direct hundreds more films for the next 68 years (and counting).
The car Jim, Mrs. Cummings and Susan drive in the desert is a 1953 Dodge Coronet Sierra station wagon.
The police cars are 1952 Nash Ambassadors.
The name of the waitress at the cafe is listed as 'Dolly' but the trooper repeatedly calls her 'Sally'.