Casablanca

Casablanca - had its world premiere on November 26, 1942 in New York City, and was released on January 23, 1943, in the United States.

Casablanca is not just one film. It is many films, an anthology, and this is the reason it works. In it there unfolds with almost telluric force the power of Narrative in its natural state, without Art intervening to discipline it.
...When all the archetypes burst in shamelessly, we reach Homeric depths. Two clichés make us laugh. A hundred clichés move us. We sense dimly that the clichés are talking among themselves, and celebrating a reunion.
Sacrifice is one of the film's key themes. The myth of sacrifice runs through the whole film. It was this theme which resonated with a wartime audience that was reassured by the idea that painful sacrifice and going off to war could be romantic gestures done for the greater good. (Wikipedia)

I just watched the parting scene at the airport. So beautifully lit and shot.......and it still made me cry!