Diane Keaton Playfully Calls Co-Star Candice Bergen a ‘Liar’ and ‘Genius’ (Exclusive)

Diane Keaton and Candice Bergen chat with ET's Rachel Smith at the premiere of 'Book Club: The Next Chapter' in New York City. The sequel's writers, Bill Holderman and Erin Simms, also tell ET that Bergen has pitched a sequel where the cast goes to Burning Man! Keaton reacts to her co-star's idea, while Bergen shares why her own 'next chapter' is one of the 'richest' yet. 'Book Club: The Next Chapter' is in theaters May 12.