John Wayne, who had missed the previous year's ceremony because he was undergoing heart valve replacement surgery, accepted an invitation from his friend Bob Hope to show up for this one and present the Best Picture Oscar. It would be his final public appearance, as he died from stomach cancer two months later.
Although Johnny Carson ultimately proved a popular Oscar host, there was some initial criticism of his selection since he had only made one movie, the 1964 high-budget failure Looking for Love (1964). He took the criticism lightly and joked about his motion picture debut (and farewell) on this and several subsequent Oscar broadcasts for which he was host.
When Ruby Keeler appeared onstage to present the Academy Award for Best Song (after Kris Kristofferson introduced her with a scene from the movie '42nd Street'), Mrs. Keeler received a spontaneous standing ovation from the audience. She was emotionally overwhelmed.