Photo of Lauren Graham & Mae Whitman by Gregg DeGuire

Fans of Lauren Graham and Mae Whitman have reason to celebrate, as the duo are working together again, this time on a film project.

The actresses played mother and daughter for years on NBC's Parenthood, which wrapped its six-season run earlier this year.

They're now collaborating on an adaption of the book The Royal We, the story of an American girl who moves to England for school and falls for a fellow student, who is actually a prince.

According to The Hollywood Reporter, the duo will co-produce the film, with Graham writing the script and Whitman expected to star.