ट्रिविया

During filming, Barbara Payton's husband, Franchot Tone, had a private detective spy on her to try to catch her cheating on him. He managed to take a picture of her and Woody Strode in bed together.

Partially based on director Curt Siodmak's original script for The Wolf Man (1941), which featured Lon Chaney Jr. in the title role.

Edward G. Robinson Jr. was originally cast in the movie but was fired by the producers following his arrest for writing a bad check for $138 to a Laguna Beach garage.

Although it only took seven days to shoot the movie, Lon Chaney Jr. was scheduled to go on a ten-day publicity tour on behalf of the film, which eventually grew to 4-1/2 months, according to Chaney biographer Don Smith.

Raymond Burr reportedly took an immediate dislike to Lon Chaney, according to Chaney biographer Don Smith.