During the entire break-up scene in the apartment at the beginning of the movie, the man's tie is repeatedly covered over by his scarf, then uncovered, in a series of consecutive close-up shots.
Exterior of Broadway theater where Spring Girl is playing is depicted as a stand-alone one story building; every Broadway theater in New York City is on the first floor of a multi-story complex.
When Bill serves Sally vichyssoise from French restaurant next door, bowls are filled with dark-colored watery broth, not the traditional white cream-based potato soup.
Early on, Eleanor Parker and Ronald Reagan arrive at her apartment after eating. She says that he should stay overnight because of it's raining so hard. Yet, neither of them is wet.
Olive only dials six digits of the seven digit phone number when she calls Lt. Cdr. Burling from Sally's apartment.
Actress playing Sally mistakenly refers to the kitchen appliance double-boiler as a double-broiler, a cooking apparatus that doesn't exist.