According to The Hollywood Reporter, Diane Keaton is in negotiations to play Jon Heder's mother in Mama's Boy for Warner Independent Pictures.

The story centers on a self-absorbed man in his late 20s (Heder) who still lives at home with his mother. The man's world turns upside down when his mother starts dating and considers booting him out of the house. Tim Hamilton will direct Mama's Boy from a script written by Hank Nelken.