Joan Rivers: A Piece of Work (2010)

This revealing documentary follows the life and career of Joan Rivers, a veteran comedienne arguably more known for her extensive plastic surgery than for her talent. The film explores her early years in the comedy industry and touches on her longtime professional relationship with Johnny Carson, who is one of many celebrities featured, along with George Carlin, Phyllis Diller, Kathy Griffin and Rivers' own daughter and frequent screen partner, Melissa Rivers.