- Hearts of the Age -not comercial- (1934) as Death
- Spanish Earth -voice only- (1937) as the Narrator
- Too Much Johnson -not comercial- (1938) as a Keystone Kop
- Swiss Family Robinson -uncredited, voice only- (1940) as the Narrator
- Citizen Kane (1941) as Charles Foster Kane
- Journey into Fear (1942) as Colonel Hakii
- The Magnificent Ambersons -voice only- (1942) as the Narrator
- Tanks -voice only- (1942) as the Narrator
- Show Business at War (1943) as Himself
- Jane Eyre (1944) as Edward Rochester
- Follow the Boys (1944) as Himself
- Tomorrow is Forever (1946) as John A. MacDonald/Erik Kessler
- The Stranger (1946) as Charles Rankin/Franz Kindler
- Duel in the Sun -uncredited, voice only- (1946) as the Narrator
- Battle for Survival -voice only- (1947) as the Narrator
- Macbeth (1948) Macbeth
- The Lady from Shanghai (1948) as Michael O'Hara
- Prince of Foxes (1949) as Cesare Borgia
- Black Magic (1949) as Cagliostro
- The Third Man (1949) as Harry Lime
- The Black Rose (1950) as Bayan
- Return to Glennascaul (1951) as Himself
- Trent's Last Case (1952) as Sigsbee Manderson
- The Tragedy of Othello: The Moor of Venice (1952) as Othello
- L' Uomo, la bestia e la virtu (1953) as Captain Perella, the Beast
- Trouble in the Glen (1953) as Sanin Cejador y Mengues
- King Lear (1953) as King Lear
- Si Versialles m'etait conte (1954) as Benjamin Franklin/ Narrator, dubbed version
- Mr. Arkadin (1955) as Gregory Arkadin
- Napoleon (1955) as Sir Hudson Love
- Three Cases of Murder (1955) as Lord Mountdargo
- Moby Dick (1956) as Father Mapple
- Man in the Shadow (1957) as Virgil Renchler
- South Seas Adventure -voice only- (1958) as the Narrator
- The Roots of Heaven (1958) as Cy Sedgewick
- The Long, Hot Summer (1958) as Will Varner
- Touch of Evil (1958) as Hank Quinlan
- The Vikings -uncredited, voice only- (1958) as the Narrator
- Les Seigneurs de la foret -voice only- (1959) as the Narrator (English language version)
- High Journey -voice only- (1959) as the Narrator
- Compulsion (1959) as Jonathan Wilk
- Ferry to Hong Kong (1959) as Captain Hart
- Crack in the Mirror (1960) as Hagolin/Lamerciere
- The Battle of Austerlitz (1960) as Robert Fulton
- I Tartari (1961) as Burundai
- Lafayette (1961) as Benjamin Franklin
- David e Golia (1961) as King Saul
- King of Kings -uncredited, voice only- (1961) as the Narrator
- Laviamoci il cervello (1962) as the "Director"
- Americans on Everest -voice only- (1963) as the Narrator
- The Trial (a.k.a. Le Proces) (1963) as the Advocate
- The V. I. P. s (1963) as Max Buda
- The Finest Hours -voice only- (1964) as the Narrator
- Marco the Magnificent (1965) as Akerman
- A King's Story -voice only- (1965) as the Narrator
- Chimes at Midnight (a.k.a. Campanadas a medianoche) (1965) as Falstaff
- Paris brule-t-il? (1966) as Consul Nordling
- A Man for All Seasons (1966) as Cardinal Wolsey
- I'll Never Forget What's 'is Name (1967) as Jonathan Lute
- Casino Royale (1967) as Le Chiffre
- The Sailor from Gibraltar (1967) as Louis de Mozambique
- Tepepa (1968) as Colonel Cascarro
- The Immortal Story (1968) as Mr. Charles Clay
- House of Cards (1968) as Leschenhaut
- Oedipus the King (1968) as Tiresias
- Kampf um Rom I (1968) as Emperor Justinian
- Bitka na Neretvi (1969) as Senator Chetnik
- Kampf um Rom-Der Verrat (1969) as Justinian
- The Southern Star (1969) as Plankett
- Waterloo (1970) as King Louis XVIII
- Upon This Rock -TV- (1970) as Michelangelo
- Start the Revolution Without Me -voice only- (1970) as the Narrator
- The Deep (1970) as Russ Brewer
- The Kremlin Letter (1970) as Bresnavitch
- 12+1 (1970) as Markan
- Catch-22 (1970) as General Dreedle
- Sentinels of Science -voice only- (1971) as the Narrator (English version)
- Salvador Dali -voice only- (1971) as the Narrator
- Malpertuis: The Legend of Doom House (a.k.a. Malpertuis: Histoire d'une maison maudite) (1971) as Cassavius
- Directed by John Ford -voice only- (1971) as the Narrator
- A Safe Place (1971) as the Magician
- Necromancy (1972) as Mr. Cato
- Get to Know Your Rabbit (1972) as Mr. Delasandro
- La Decade prodigieuse (1972) as Theo van Horn
- Die Schatzinsel (a.k.a. Treasure Island) (1972) as Long John Silver
- Sutjeska (a.k.a. The Fifth Offensive) (1973)
- Treasure Island (1973) as Long John Silver
- The Challenge...A Tribune to Modern Art (1974)
- And Then There Were None -voice only- (1974)
- Who's Out There? (1975) as the Host
- F for Fake (a.k.a. Verites et mensonges) (1975) as Himself
- Bugs Bunny Superstar -voice only- (1975) as the Narrator
- Voyage of the Damned (1976) as Estedes
- Some Call It Greed -voice only- (1977) as the Narrator
- Rime of the Ancient Mariner -voice only- (1977) as the Narrator
- Hot Tomorrows -voice only- (1977) as Parklawn Mortuary
- The Biggest Battle (a.k.a. Il Grande attacco) (1977) as the Narrator
- It Happened One Christmas -TV- (1977) as Henry F. Potter
- Tut: The Boy King -TV- (1978) as the Host
- Filming Othello (1978) as the Host
- A Woman Called Moses -TV, voice only- (1978) as the Narrator
- The Muppet Movie (1979) as Lew Lord
- The Double McGuffin -voice only- (1979) as the Narrator
- The Late Great Planet Earth -voice only- (1979) as the Narrator
- The Secret Life of Nikola Tesla (a.k.a. Tajna Nikole Tesle; Tesla) (1980) as J. P. Morgan
- The Man Who Saw Tomorrow -voice only- (1980) as the Narrator
- Search for the Titanic (1981)
- Genocide -voice only- (1981) as the Narrator
- Butterfly (1981) as Judge Rauch
- Shogun -TV, voice only- (1981) as the Narrator
- History of the World: Part 1 -voice only- (1981) as the Narrator
- Slapstick (Of Another Kind) -voice only- (1982)
- Where is Parsifal? (1983) as Klingsor
- Hot Money (1983) as Sheriff Paisley
- The Road to Bresson (a.k.a. De Weg naar Bresson) (1984) as Himself
- In Our Hands (1984) as Himself
- The Enchanted Journey -voice only- (1984) as Pippo
- Almonds and Raisins -voice only- (1984) as the Narrator
- The Transformers: The Movie -voice only- (1986) as Unicron
- Someone to Love (1987) as Danny's friend
- Don Quixote -posthumus, voice only- (1992) as the Narrator
- Who is Henry Jaglom? -posthumus- (1996)
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