How many acts are there in this play in which Joan Collins made her stage debut?
Joan Collins:  After making her stage debut in the Henrik Ibsen play "A Doll's House" at the age of nine, she trained as an actress at the Royal Academy of Dramatic Art (RADA) in London. A Doll's House: A Doll's House (Bokmål: "Et dukkehjem" ; also translated as "A Doll House") is a three-act play written by Henrik Ibsen.
three-act