When Lansbury was nine, her father died from stomach cancer; she retreated into playing characters as a coping mechanism. Facing financial difficulty, her mother became engaged to a Scottish colonel, Leckie Forbes, and moved into his house in Hampstead, with Lansbury receiving an education at South Hampstead High School from 1934 until 1939. She nevertheless considered herself largely self-educated, learning from books, theatre and cinema. She became a self-professed "complete movie maniac", visiting the cinema regularly and imagining herself as certain characters. Keen on playing the piano, she briefly studied music at the Ritman School of Dancing, and in 1940 began studying acting at the Webber Douglas School of Singing and Dramatic Art in Kensington, West London, first appearing onstage as a lady-in-waiting in the school's production of Maxwell Anderson's "Mary of Scotland".