Don't forget that "Casablanca" was made in 1942, right in the heart of World War 2. So the scene where the German Army is drowned out by patrons singing the French Anthem was tremendously impactful on the big screen to viewers. Watching that movie today without understanding the context of when it was released robs it of just how powerful that movie was.
Just a great movie.
I don’t know if it’s THE BEST, but it’s one of my very favorites too.
Little big Man by Thomas Berger, one of the very best book to film adaptions ever made and a personal favourite.Little Big Man, Unforgiven, The Right Stuff....and more I'm sure, depends on the day I suppose