Marie Dressler gets to carry most of the gold -- from one of film's greatest double-takes, to one of the best-ever examples of slow-taking your time to set up a joke, to delivering one of the most classic final lines ever in a film. But Jean Harlow's nonchalant innocence shows the value of a straight man and having the proper set-up.
I'm sure most of you all have seen it. But even if so, it can't be seen too often. It just doesn't get much better than this. When you've got the ending nailed to ground, say good night and get off the stage.