To the generations of opera singers that came after her, she’s still an era-defining consummate artist. “She’s an icon. There’s no other way to put it,” said bass Morris Robinson, who recently sang the role of Ramfis in “Aida” with Boston Lyric Opera.

Deadline’s Read the Screenplay series spotlighting the scripts behind the year’s buzziest awards-season films continues with Maria, the Maria Callas snapshot-biopic starring Angelina Jolie. Pablo Larraín directed the screenplay penned by Steven Knight.

The Oscar winner took months of singing lessons to portray the iconic soprano in the film. Rick Damigella talked with Jolie and her voice coach about making the film.