"Lux Radio Theater" broadcast a 60 minute radio adaptation of the movie onMarch 1, 1948 with Wallace Beery, Coleen Gray and Margaret O'Brien reprising their film roles.
According to page 70 of "Notes For A Memoir", Janet Jeppson, second wife of Isaac Asimov, describes how she was acting as an extra in this movie on August 14, 1945, when Wallace Beery came out of his trailer to tell everyone on-site that World War II had been declared over.