"I'll sing when I'm ready to sing." That's a line from Pablo Larrain's "Maria," now streaming on Netflix, based on the final days of opera superstar Maria Callas. The film is peppered with flashbacks of arias by Verdi and Puccini when Callas was at the height of her success.

In Pablo Larraín’s Maria, Angelina Jolie transforms into the late opera diva Maria Callas—not just physically, with her chic French wardrobe, luxurious stage looks, and curly wigs, but also vocally. The film features a mixture of her own live vocals and Callas’s archival recordings,

Yes, Maria is based on the true story of Greek opera singer Maria Callas, who died of a heart attack in 1977, when she was only 53 years old. Maria imagines the last few days of Callas’s life, in which once the once-great opera singer struggles with a drug addiction, hallucinations, and her declining health.