Reese Witherspoon and Ryan Reynolds have joined the cast of Big Eyes for producer Tim Burton and directors Scott Alexander and Larry Karaszewski.

The project is based on the true story of artists Margaret Keane and Walter Keane, whose bizarre paintings featuring large eyes were beloved across the world in the 1960s. The film will center on how Margaret Keane was the true artist behind the paintings, and how Walter Keane stole all the credit for her work.

Scott Alexander and Larry Karaszewski will direct from their own screenplay, with Tim Burton producing alongside Electric City Entertainment's Lynette Howell and Jamie Patricof. Here's what Scott Alexander and Larry Karaszewski had to say about the casting.

"We are ecstatic to have this dream cast for our dream project. Walter is a larger-than-life antihero -- charming, funny, dangerous, and a little crazy. Ryan will knock it out of the park. As for Reese, she will be perfect as Margaret -- soulful, decent, transforming from vulnerability to learning to fight for herself."

Production is scheduled to begin sometime this spring.