The picture was almost completely shot on location. Only five days were shot on the studio sound stage out of the film's three months of principal photography.
In the scene at the beginning when the names are being painted over on the parking spaces, the name we see being erased is "D Trumbull", a reference to the producer/sfx wizard Douglas Trumbull.
Dick and Jane's home in the film was a real-life house in Beverly Hills, California.
When Dick (George Segal) is moving through the back stairwell passage of the Taft Industries building, he passes by a large, poster-size photo portrait of Moshe Dayan, noted Israeli military leader and politician. This was a blow-up of a 1967 photograph taken by LIFE Magazine photojournalist Paul Schutzer, who died on assignment while embedded with Israeli troops on the first day of the Arab-Israeli Six-Day War, June 5, 1967.
Anne Ramsey: As an unemployed employment applicant. She's the woman with the head scarf who Dick inadvertently cuts in front of, and she taps him with her newspaper to let him know.