What is the oldest movie with both its leading actor and leading actress still alive?

The oldest I could find is Beneath the 12-Mile Reef (1953)Where both Robert Wagner (b 1929) and Terry Moore (b. 1929) are still alive.I asked a related question some days ago.Other movies I found:A Hatful of Rain (1957) (Eve Mary Saint and Don Murray)Mary Poppins (1964) (Julie Andrews and Dick Van Dyke)I guess the strategy is looking for old actors and actress and see if they've worked together, the problem is I'm asking for leading roles, the main actor and actress. via /r/movies https://ift.tt/hEa0Mnl