Trivia for
"Illustrated, Simplified and Painless Sunday School" (1973) More at IMDbPro »

• Because of budget constraints, Marshall Efron was the only person to appear on-camera. A "crowd scene" was shot by having Efron walking past a camera multiple times in different costumes, and the images were superimposed on top of each other. When a scene required two or more people to appear, Efron would have scenes shot with him speaking to someone off-camera or to a dummy with its back to the camera. Corresponding scenes then would be shot, with Efron playing the other role. The footage would be edited to make Efron appear to talk to himself.
  
  
• Efron created the title by studying the elaborate labels on antique patent medicine bottles.
  
  

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