This is the only Woody Allen film in which both of his frequent collaborators and longtime companions Mia Farrow and Diane Keaton appear.
When the Uncle goes next door to confront the communists, the man screaming about the plight of the "worker" is Larry David, who can be seen in a long shot.
The amusement park young Joe walks by in the film is old Rockaway Playland located in Rockaway Beach, New York. The park was in its last year of operation when the film was being made in 1987 and was subsequently closed and demolished. After remaining an empty lot for many years the property, in the late nineties, had been developed with houses built on it. Ironically the Beach 98th train station on the IND A train still holds the name PLAYLAND in its station name.
Sally White's becoming a celebrity gossip reporter after her radio career fizzles out is based on real-life actress-turned-gossip Hedda Hopper.
The story of Kirby Kyle, the ill fated baseball player, is a parody of former Chicago White Sox pitcher Monty Stratton, whose promising career was derailed after he lost part of his leg due to a hunting accident. Stratton attempted a comeback, and then retired. His life was made into a movie: The Stratton Story (1949).
William H. Macy appears not only as a radio voice, but also as one of the radio actors at the Pearl Harbor Announcement.
In the 1940s, the term "Radio Days" was often used to describe that type of employment for those in the entertainment field.