She has faded from view and is surrounded by sycophants and enablers whom she pays to tell her what she wants to hear. She expects a return to her former glory and when she realizes it will never happen she becomes enraged and strikes out.
At the end she leaves her mansion on the promise of stardom. As the fade to black occurs she approaches the camera delusional and posing as she speaks."I'm ready for my closeup Mr. DeMille".
Not an exact analogy. Close enough.