Paz Vega has been cast as the tempestuous opera singer Maria Callas in Grace of Monico, in which Nicole Kidman stars as Grace Kelly, the Hollywood actress who became Princess Grace of Monaco.

Olivier Dahan, who helmed the Edith Piafbiopic La vie en rose, is directing the project from a script by Arash AmelPierre-Ange Le Pogam of Paris-based Stone Angels is producing along with Udaf Chopra of YRF Entertainment, the Hollywood-based banner of Yash Raj Films.

The film focuses on a six-month period in 1962 when Monaco was in a dispute with France and Princess Grace worked behind the scenes to prevent a coup. At the time, Grace came to know Callas, who was carrying on an affair with Greek millionaire Aristotle Onassis.