With her mother accompanying her, she moved to London in 1921 and the next year she began writing a column for the paper called "The Week on the Screen". In 1925 she married Edward Roffe Thompson, a psychologist and journalist. (Their home at Lane End was near her mother's home in Pinner.) Their son, Anthony Lejeune, was born in 1928. That same year she left "The Manchester Guardian" for "The Observer" (which then had no connection with the "Guardian" group), where she remained for the next 32 years, although she also contributed to other publications such as "The New York Times" contributing articles about British cinema to the American paper's Sunday drama section.