Diane Keaton's Father of the Bride costar is remembering the legendary actress after her death. "This breaks my heart. Getting to work with Diane Keaton will always be one of the highlights of my life," Kimberly Williams-Paisley wrote in the comments section of People's Instagram post announcing the actress' death, alongside a red heart emoji. News broke on Sunday, October 11, that Keaton died at age 79. A spokesperson for her family told People that she was in California and no additional information about her death would be available at this time.