Brian Aherne's final screen appearance.
James Farentino hated the film, telling gossip columnist Rona Barrett "it almost destroyed my brain!"
Gene Roth's last film.
The title song, "Rosie", was composer 'Harry Warren''s final song contribution to a produced movie. The melody is actually a rework of a song, "Me And My Baby," with original lyrics by Sammy Cahn, that was written for, but not used in, the Jerry Lewis film Rock-a-Bye Baby.