Mary Nell Steenburgen is an American actress, comedian, singer, and songwriter. After studying at New York's Neighborhood Playhouse in the 1970s, she made her professional acting debut in the Western

Book Club is a 2018 American romantic comedy film directed by Bill Holderman, who co-wrote the screenplay with Erin Simms. The film stars Diane Keaton, Jane Fonda, Candice Bergen, and Mary Steenburgen