Film debuts of Sondra Blake, Shelley Morrison, and Kaye Stevens, the latter who was nominated for a Golden Globe Award as Best Supporting Actress for this performance. Charles Robinson's first credited film performance, although he appeared earlier, uncredited, in Splendor in the Grass (1961).
In the end credits, the male characters are listed by their surname, and the female characters by their given name. This reflects societal norms of the time.