- Hostility on the Set: Before production began, Fredric March publicly dismissed Veronica Lake as a brainless sexpot who couldn't act; she responded by calling him, equally publicly, a "pompous teapot". On set she frequently played mean pranks on him, like hiding 40-pound weights in her dress prior to scenes where he had to pick her up and grinding her foot in his crotch during scenes where they embraced and were shot from the waist up.
- What Could Have Been: Joel McCrea, Lake's costar in the classic Sullivan's Travels, was approached to star in this movie too. He declined, saying "One film with Veronica Lake is enough." March also hated working with Lake, who was notoriously difficult on the set.
Trivia / I Married a Witch