How does Blue Moon portray Lorenz Hart's decline?

The new movie Fairyland, produced by Sofia Coppola, is adapted from the memoir by Alysia Abbott. She wrote about being the child of a gay single father at the dawn of the gay liberation movement. He raised her in 1970’s San Francisco, after her mother died. He later died from complications from AIDS. Abbott spoke with Terry Gross in 2013. 

John Powers reviews the new film Blue Moon, directed by Richard Linklater.