- Roger Corman actually filmed a real house being burnt for the closing scenes. He'd heard about it on the radio and quickly gathered his crew to film it.
- This film marked a major change in the career of Roger Corman. Instead of producing two low budget black and white films for release as a double feature, American International agreed that he could use the budget to produce one higher budget movie, in Cinemascope and color, instead.
- Some of the footage from the fire sequence would be reused in later films. Roger Corman never expected the audience to recognize this footage.
- The stark landscape that Mark Damon rides through was the site of a forest fire in the Hollywood Hills. Roger Corman had heard of the fire on the radio and went to the location the next day with his crew to do the shots of Damon.
- Roger Corman learned that there was an old barn in Orange Country that was about to be demolished. He was able to strike a deal that would allow him to burn the barn at night and film it. The resulting footage was so good that it was used not only in the climax of this film but in later "Poe" films as well.
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