12. Ending
I don't need to say much here. Even people who've never seen Casablanca are familiar with the ending. It was shown in
When Harry Me Sally, where Harry (Billy Crystal) proclaims it the best movie ending ever. I would have to agree. Oh, and the iconic closing line, "Louis, I think this is the beginning of a beautiful friendship.", was not in the original shoot. It was dubbed in later. I can't imagine the film having the same impact without it. So, when we add it all up - several of the best actors of all time, one of the greatest movie songs, a ton of memorable quotes, a great script, an exotic locale, great character development, unending romance, etc. - it's hard to argue with
Casablanca's standing in film history.
Citizen Kane,
The Godfather, and
Gone With the Wind may come close, but none of those is my favorite movie so they don't count.