D'entre a suya filmografía, se puet destacar bellas d'as suyas interpretacions en cintas como The Fall of the Roman Empire (1964, Anthony Mann), The Sound of Music (1965, Robert Wise), The Night of the Generals (1967, Anatole Litvak), Battle of Britain (1969, Guy Hamilton), The Man Who Would Be King (1975, John Huston), Murder by Decree (1979, Bob Clark), The Insider (1999, Michael Mann), A Beautiful Mind (2001, Ron Howard), The Last Station (2009, Michael Hoffman), Beginners (2010, Mike Mills).