Well, nobody's perfect.
Now, what is it which makes a scene interesting? If you see a man coming through a doorway, it means nothing. If you see him coming through a window - that is at once interesting.
Jerry: Oh, you don't understand, Osgood! Ehhhh... I'm a man. Osgood: Well, nobody's perfect.
You're as good as the best thing you've ever done.
If you have a problem with the third act, the real problem is in the first act.
They've tried to manufacture other Marilyn Monroes and they will undoubtedly keep trying. But it won't work. She was an original.