Who was Elvis Presley's last leading lady in a film?

Mary Tyler Moore was The King's last leading lady in a 1969 film called Change of Habit. MTM portrayed one of three nuns (Jane Elliot and Barbara McNair were the others) that moved into a low income neighborhood, undercover, to help the people, change of the attitudes of the elderly priest who did not trust his ethnic church members and deal with a local loan shark.

Essentially this was a small example of the church's effort to modernize itself into the '60s and '70s with a more liberal, open attitude.

Presley played the role of a young general practice doctor dealing with everything from teenage girls going boy crazy to autism. MTM was his assistant in the hospital and complicated love interest.

Of course, there is the usual musical numbers by Presley including the upbeat tune "Rubberneckin". Other songs on the soundtrack include the title track, "Have a Happy" and "Let us Pray".

Rubberneckin was not on the original soundtrack. But was added to the film at the last second with Elvis performing the song live on set during production.