Question: Christine Ebersole appeared on Broadway in what musical, based on a 1975 documentary?
Related documents: [0]  [DOC] Grey Gardens is a musical with book by Doug Wright, music by Scott Frankel, and lyrics by Michael Korie, based on the 1975 documentary of the same title about the lives of Edith Ewing Bouvier Beale ("Big Edie") and her daughter Edith Bouvier Beale ("Little Edie") by Albert and David Maysles. The Beales were Jacqueline Kennedy's aunt and cousin, respectively. Set at Grey Gardens, the Bouviers' mansion in East Hampton, New York, the musical tracks the progression of the two women's lives from their original status as rich and socially polished aristocrats to their eventual largely isolated existence in a home overrun by cats and cited for repeated health code violations. However, its more central purpose is to untangle the complicated dynamics of their dysfunctional mother/daughter relationship. [END] 
[1]  [DOC] Christine Ebersole (born February 21, 1953) is an American actress and singer. She has appeared in film, television, and on stage. She appeared on Broadway in the musical "42nd Street", winning a Tony Award, and appeared both Off-Broadway and on Broadway in the musical "Grey Gardens", winning her second Tony Award. She has co-starred on the TBS sitcom "Sullivan & Son", where she played Carol Walsh. [END] 
Answer: 
Grey Gardens
Grey Gardens