The house Niles rents, as of 2021, still stands. It was built in 1959, has 2,083 sq. ft, 3 bedrooms, 2 baths on a quarter-acre lot and in 2021 was valued at over $1,000,000.
Rosemary's angry-looking car is a 1961 Plymouth Fury convertible. It has a push-button transmission selector on the dashboard to the left of the rare factory-optional D-shaped "Aero" steering wheel.
One of five movies in the early-1960s that featured both Jim Hutton and Paula Prentiss. The five movies were Where the Boys Are (1960), Bachelor in Paradise (1961), The Honeymoon Machine (1961), The Horizontal Lieutenant (1962), and Looking for Love (1964). They were a romantic couple in all except "Looking For Love." MGM billed them as the "next" William Powell and Myrna Loy.
This film was unsuccessful at the box office, resulting in a loss to MGM of $344,000 ($2.85M in 2017) according to studio records.