Richard Gere will star in the story of Clifford Irving, the man who wrote and sold a bogus biography of millionnaire Howard Hughes.
Alfred Molina and Marcia Gay Hardon will also have roles in the movie.
Delpy will play Irving’s mistress and Davis will play Andrea Tate, an employee at the book editing company McGraw-Hill.
The film, directed by Bill Wheeler, is being distributed by Walt Disney Studios.