 She appeared as a singer in "A Study in Terror" (1965), followed by a number of films, including "The Fixer" (1968), "Lock Up Your Daughters" (1969), "The Raging Moon" (1971, for which she was nominated for a BAFTA Award), "Running Scared" (1972), "Nothing But the Night" (1973), "Tales That Witness Madness" (1973), "Galileo" (1975), "The Seven-Per-Cent Solution" (1976) and "The Bawdy Adventures of Tom Jones" (1976).She also appeared in several television dramas, including the BBC's highly acclaimed "The Roads to Freedom", a 1970 adaptation of Jean-Paul Sartre's trilogy for which she sang the theme song, ""La route est dure"".Brown made a memorable one-off appearance as a Bloomsbury radical in a 1971 episode of "Upstairs, Downstairs", portrayed music hall singer Marie Lloyd in the 1972 serial "The Edwardians", and took the role of Mrs Peachum in a 1975 biographical drama, one of four about Benjamin Franklin, "The Rebel".