The copy machine Juliet wants to return is a Xerox 813, the world's first "desktop" plain paper copier. It weighed 200 pounds and was introduced in 1963.
In 1974, Roger Kirwood opened a restaurant in Northampton, Massachusetts, called "Fitzwilly's", inspired by this film, featuring the film poster in its entrance.
Fitzwilly's thrift store is named for St. Dismas, the "good thief" crucified with Christ in Christian tradition.