 | Charmed Lives: A Family Romance (2028) as Self (archive footage) |
 | Julie Andrews, la mélodie d’une vie (2019) as Self (archive footage) |
 | Hollywood Singing & Dancing: A Musical History - 1960's (2009) as (archive footage) |
 | Cole Porter in Hollywood: Ça c'est l'amour (2003) as Self (archive footage) |
 | Cleopatra: The Film That Changed Hollywood (2001) as Self (archive footage) |
 | Sir John Mills' Moving Memories (2000) as Self (archive footage) |
 | More Loverly Than Ever: The Making of 'My Fair Lady' (1995) as Self / Professor Henry Higgins (archive footage) |
 | I Don't Even Like Apple Pie... (1989) as Self (Archive Footage) |
| | The Kingfisher (1983) as Cecil |
 | A Time to Die (1982) as Van Osten |
 | The Fifth Musketeer (1979) as Colbert |
 | Ashanti (1979) as Brian Walker |
| | शालीमार (1978) as Sir John Locksley |
 | The Prince and the Pauper (1977) as The Duke of Norfolk |
| | Bob Hope's World of Comedy (1976) as Self (archive footage) |
 | Frank Sinatra: The Main Event (1974) as Self - Audience Member (uncredited) |
 | Rex Harrison Presents Stories of Love (1974) as Self - Host |
 | The Adventures Of Don Quixote (1973) as Don Quixote |
| | Platonov (1971) as Mikhail Platonov |
 | Staircase (1969) as Charles Dyer |
 | A Flea in Her Ear (1968) as Victor Chandebisse / Poche |
 | Fenomenal e il tesoro di Tutankamen (1968) as A man in the street (uncredited) |
 | Doctor Dolittle (1967) as Dr. John Dolittle |
 | The Honey Pot (1967) as Cecil Fox |
 | The Agony and the Ecstasy (1965) as Papa Giulio II |
 | The Car That Became a Star (1965) as The Marquess of Frinton (archive footage) |
 | The Yellow Rolls-Royce (1964) as The Marquess of Frinton |
 | My Fair Lady (1964) as Professor Henry Higgins |
 | Cleopatra (1963) as Julius Caesar |
 | The Happy Thieves (1961) as Jimmy Bourne |
 | Midnight Lace (1960) as Anthony Preston |
 | The Fabulous Fifties (1960) as Self |
 | Zwischen Glück und Krone (1959) |
 | The Reluctant Debutante (1958) as Jimmy Broadbent |
 | The Constant Husband (1955) as William Egerton |
 | King Richard and the Crusaders (1954) as Emir Hderim Sultan Saladin |
 | Main Street to Broadway (1953) as Self |
 | The Four Poster (1952) as John Edwards |
 | The Long Dark Hall (1951) as Arthur Groome |
 | Unfaithfully Yours (1948) as Sir Alfred de Carter |
 | Escape (1948) as Matt Denant |
 | The Foxes of Harrow (1947) as Stephen Fox |
 | The Ghost and Mrs. Muir (1947) as Capt. Daniel Gregg |
 | Anna and the King of Siam (1946) as King Mongkut |
 | The Rake's Progress (1945) as Vivian Kenway |
 | Journey Together (1945) as Guest (uncredited) |
 | I Live in Grosvenor Square (1945) as Major David Bruce |
 | Blithe Spirit (1945) as Charles Condomine |
 | Major Barbara (1941) as Adolphus Cusins |
 | Night Train to Munich (1940) as Gus Bennett |
 | Ten Days in Paris (1940) as Bob Stevens |
 | Over the Moon (1939) as Dr. Freddie Jarvis |
 | The Silent Battle (1939) as Jacques Sauvin |
 | The Citadel (1938) as Dr. Frederick Lawford |
 | St. Martin's Lane (1938) as Harley Prentiss |
 | School for Husbands (1937) as Leonard Drummond |
 | Storm in a Teacup (1937) as Frank Burdon |
 | Men Are Not Gods (1936) as Tommy Stapleton |
 | All at Sea (1936) as Aubrey Bellingham |
 | The School for Scandal (1930) as Man (uncredited) |
 | The Great Game (1930) as George |
| | Rex Harrison at the N.F.T. as Self |
| | The Long Dark Hall Associate Producer |
