Bradley Cooper
The film, a biopic about the famed conductor and his wife, is set to stream on Netflix later this year.
The A Star Is Born director and star also opened up to Bear Grylls on how the death of his own father has changed him, too.
"It was his first job and he was desperate to get it," Cynthia Nixon recalled.
He also spoke about turning down a role that became a huge success for Bradley Cooper, and talking himself out of a major comedy.
The Hollywood star said something fellow actor Will Arnett told him helped him to realise he had a problem back in the early 00s.
The actor looks a world away from his usual self in character for Netflix's Maestro.
"It was honestly one of the lowest points in my life."
"I realised I had gotten way, way too comfortable in the city. My guard was down."
The music legend, who starred in the '70s remake of the film, said she thought the latest version was the "wrong idea."
The A Star Is Born actor got real about his coronavirus self-isolation.