The movie was written by Neil Simon and directed by Herbert Ross.
It won the Academy Award for Best Actor (Richard Dreyfuss) and was nominated for Best Actress in a Leading Role (Marsha Mason), Best Actress in a Supporting Role (Quinn Cummings), Best Picture and Best Writing, Screenplay Written Directly for the Screen.
At 30, Dreyfuss is the youngest actor ever to win the Best Actor Oscar.
The Goodbye Girl was subsequently developed into a Broadway musical.