The Black Scorpion costume was sewn onto Joan Severance's body. It had to be re-sewn after every bathroom break.
While the production was shooting the downtown car chase, local news helicopters appeared and began covering the chase live, unaware that it was staged.
Roger Corman said he originally wanted an unknown to play the lead, but he had a hard time finding an actress with everything he needed. He said. "I wanted a tall actress. She does a lot of martial arts. I couldn't have a 5-foot-1 actress beating up all these big guys. So I wanted a tall, beautiful woman with a good figure, who was a good actress, but I wasn't looking for Meryl Streep, just a good actress. I figured this would be pretty easy in Hollywood. It turned out to be incredibly difficult. I've never seen so many beautiful bad actresses in my life."