Liberace tried to keep his relationship with Thorson from the public. When Thorson sued Liberace for palimony after their breakup, the entertainer denied that he was gay or that the two had been lovers.

"It's unfortunate to see the movie through a contemporary lens and know they were not allowed to be as open back then as people are today," Soderbergh said.

Liberace died in 1987 at age 67.

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The filmmakers used locations and props directly from Liberace's life. Scenes were filmed at the musician's Los Angeles penthouse and on the stage at the Las Vegas Hilton where Liberace performed. The filmmakers also reunited his trademark, matching "Dueling Pianos".

The movie's costume designers worked to recreate his elaborate costumes. In one of the star's dramatic entrances, the real-life Liberace wore a $300,000 white virgin fox coat, lined with $100,000 worth of Austrian crystals, that weighed 100 lbs (45 kg). In the film, Douglas wears a replica made of fake fur that weighs much less.

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Damon also got to wear his share of flashy outfits. While he said he normally doesn't pay too much attention to wardrobe fittings, he said he embraced the glamorous costumes in the Liberace film.

"I probably spent more time in wardrobe fittings in this thing than I have in the previous 15 projects," he said. "I really enjoyed it."