Trivia

The original voice of the computer belonged to Broderick Crawford.

While the shots of the shuttlecraft were achieve with a scale model, most of the shots of the Vertigo were achieved with animation.

Ron Kurowski receives an "introducing" credit.

Broderick Crawford was originally the voice of the computer on the spaceship but was replaced after his health suddenly declined.

Paul Brinegar, who pays Dirty Harry here, was a regular cast member with Clint Eastwood on the TV series Rawhide.