A ferocious, funny, and poignant portrait of the one-of-a-kind Broadway legend still belting out Sondheim numbers at age 87, the documentary tribute showcases the brash, uncompromising Tony and Emmy winner both on stage and off. The film captures her immeasurable charm, acerbic wit, and impressive accomplishments with candid footage and interviews with friends and collaborators, including Sondheim, Tina Fey, and Nathan Lane.