Ed Begley, Jr., discusses his experience making the movie on episode #202 of Gilbert Gottfried's Amazing Colossal Podcast (4/9/18), starting after the 59-minute mark.
Final film of Susan Ikeda.
Playboy has a peripheral presence in the film. Eddie's office desk has Playboy magazines on it (November 1970, December 1973, and February 1975); There are nine Playboy centerfolds (minus the nudity) posted on the store bathroom wall by the door; and March 1974 Playmate Pamela Zinszer plays the shopper wearing blue satin shorts that gives the old man a heart attack in the store.