I don't want to be the one to tell you, but if you haven't seen Casablanca you are a broken, unfulfilled person. The simple love story of Rick and Elsa with the backdrop of WW2 should be on everyone's "to watch" list.
Humphrey Bogart stars as Rick, a man without a country in the land of Casablanca where life is cheap and getting out is expensive. In comes a couple of problems, some illegally obtained letters of transit and Ingrid Bergman, the person who broke Ricky's heart and now needs to get out. Oh, and she's got a man with her. Add in some Nazis and some unscrupulous folks and this soup is done.
Still, what else can you say has been around for damn near a century and still works? And with film, that's doubly hard. Effects get dated, themes get lost, overall ideas are faded by the memory of time.
Casablanca has not faded because the timeless ideas of love and loss and good and evil and even the vast shades of gray still hold up. The music and the acting and the sets are just so damn good. And the lines…
I'm rambling, but I will leave you with the one moment I still dislike: the Tango Delle Rose part. I just don't like it and after nearly 20 years of watching this movie it is nails on chalkboard.