Barbra Streisand met former romantic partner/companion Jon Peters on this film who was was the production's hairdresser. Peters made and styled the wigs Streisand used for this movie.
Actors Michael Landon and James Farentino were considered for the leading man role of Pete Robbins and were screen tested by the part in the end was cast with actor Michael Sarrazin.
The short haircut of Barbra Streisand in this film was actually a wig that had been styled by her then boyfriend and hair-stylist on this film Jon Peters.
When Barbra is riding the motorcycle with Michael Sarrazin, she is obviously hurt by something. You can see her say "Ouch!". The shot was left in and not redone.
The song "For Pete's Sake (Don't Let Him Down)", sung by Barbra Streisand over the opening credits, was never commercially released. Lyricist Mark Lindsay, formerly of Paul Revere & The Raiders, has said that neither he nor Streisand was fond of the number, but worked together amicably to get the job finished.