My favorite is: Godfather Part II - their is no movie that I can think of that is as powerful as that movie - its just one of the best movies ever made.
treasure of the sierra madre,on the waterfront,the maltese falcon,in cold blood,bonnie and clyde,key largo,little caesar,come back little sheba,red river,stagecoach,a christmas story,casablanca,my darlin clementine,