Do Bob Hope and Bing Crosby count as a couple?
How about Bacall and Bogart?
Or Humphrey Bogart and Ingrid Bergman?
Irene Dunne and Cary Grant were
great together in several movies.
And Celia Johnson and Trevor Howard in Brief Encounter--oh, major Kleenex time!
But my favorite couple was Sophia Loren and Marcello Mastrianni--what a duo! Perfect togeter!