Trivia / Phase IV

• Fake American: Lynne Frederick, whose English accent can be heard to slip in from time to time.
• I Want You to Meet an Old Friend of Mine: Lynne Frederick and Nigel Davenport had previously appeared together in No Blade of Grass.
• Missing Trailer Scene: Several clips from the deleted Mind Screw ending are present in the trailer such as the brief montage of people wearing optometry gear and the shot of a man with no face.
• What Could Have Been: Linda Blair was originally cast as Kendra. Saul Bass loved the performance she gave in her audition and she returned for numerous callbacks and even made it as far as a screen test but thanks to The Exorcist making her a big star, she was too expensive for production to move forward on top her being considered too young for the part so the role ultimately went to Lynne Frederick.

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