Jean Smart Joins 'The Family Stone' Sequel, Her Role in 'The Families Stone' Revealed!

Getty Jean Smart is joining the Stone family! The 75-year-old Emmy-winning actress has joined the cast of The Families Stone, the upcoming sequel to the beloved 2005 holiday movie The Family Stone. Jean joins a stacked lineup of returning stars, including Sarah Jessica Parker, Rachel McAdams, Claire Danes, Dermot Mulroney, Craig T. Nelson and Luke Wilson. And we now know how Jean fits into the story! Who Is Jean Smart Playing in The Families Stone? The sequel takes place 20 years after the death of Stone family matriarch Sybil, who was played by the late Diane Keaton. The family will reunite . . .