Samuel Johnson famously described the idea of a woman's preaching as "like a dog's walking on his hind legs: it is not done well, but you are surprised to find it done at all".
It's hard not to have a similar reaction to this dramatisation of the last 10 years in the life of Wladzio Valentino Liberace, the bespangled pianist and showman for whom the word "flamboyant" might have been invented.
Director Soderbergh, who has hinted that it may be his last film, spent several years - during which stars Douglas and Damon remained staunchly loyal to the project - trying to get backing from Hollywood studios (he says they rejected it as "too gay" to sell). Funded at last by HBO, the film screened only on television in the US.
So its existence is, like that walking dog's, an achievement in itself. But, despite superb work from the main duo, it never rises above formulaic. It's a film without a beating heart, without blood flowing through its veins.
Its source is the 1988 memoir Behind the Candelabra: My Life with Liberace by Scott Thorson, who at 17 became the personal assistant, companion and lover of the entertainer, then 40 years his senior.