Thorson carried on a six-year affair with the flamboyant entertainer until 1982, and he wrote about their controversial romance in his memoir Behind the Candelabra: My Life with Liberace.
Producer Jerry Weintraub picked up the project in the hopes of adapting the book into a new movie and it is now in production, with Douglas playing the piano legend and Matt Damon starring as his much younger boyfriend Thorson.
In August (12) Thorson was diagnosed with advanced anal cancer, prompting him to reach out to the Oscar winner, who recently beat stage four throat cancer, for support, but his request was promptly shut down.
He tells the National Enquirer, ""All I wanted to do was meet Michael and talk to him about my cancer. But I was bluntly told it would be impossible. That really hurt... Right now, I'm very scared... I don't know if I'll make it to the premiere in May (13).""
But Thorson admits he did get some sympathy from Weintraub: ""About three months ago, I got one phone call from Jerry Weintraub when he found out that I had cancer. He said, 'I'm very sorry that you're going through cancer.'""