Don Juan was a real person named Miguel de Manara. In this movie, Douglas Fairbanks writes a note and signs it with that name.
James Mason had four days extra work on the film before being dismissed and his scenes cut.
George Frank Rubens wrote the words and music of a promotional song, "Don Juan", inspired by this movie, published by Chappell in the U.K. in 1934.
Debut of actress Margaretta Scott .