Four Sided Triangle

Bill and Robin, helped by, Lena, develop a "reproducer" which can exactly duplicate any object. Bill, crushed when Lena marries Robin, convinces her to allow him to duplicate her, so that he may have a copy of her for himself.

Four Sided Triangle is a 1953 romance sci-fi movie directed by Terence Fisher, starring John Van Eyssen, James Hayter, Stephen Murray. It holds an IMDb rating of 5.9/10 from 1,009 votes and runs 1h 21m.