Professor Popper's Problem (1974)
Professor Popper's Problem was a film made in 1974 turned into a 6 part serial by Mersey Film Productions for the Children's Film Foundation.
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Director: Gerry O'Hara
Distributor: Mersey Film Productions
Release date: January 1, 1974
Running time: 91 min (6 episodes)
External links:
IMDb