In a pre-American Film Market move, Pathe Intl. has signed Meryl Streep and Hugh Grant for the Florence Foster Jenkins biopic “Florence.”

Stephen Frears, who helmed “The Queen” and “Philomena,” is on board to direct “Florence” from a script by Nicholas Martin. Pathe will launch foreign sales at AFM.

Streep stars as a New York heiress determined to become a famous opera singer despite her lack of talent. Grant will play her partner and manager, actor St. Clair Bayfield.

The film is in pre-production. Michael Kuhn and Tracey Seaward will produce.

Jenkins persisted in performing during the late 1920s to the mid 1940s and dismissed public ridicule. “People may say I can’t sing, but no one can ever say I didn’t sing,” she said at one point.

Frears recently completed shooting a Lance Armstrong biopic with Ben Foster starring.

The castings were first reported by the Daily Mail.