2021Parkinson at 50— Self (archive footage)
2021Morceaux de Cannes— Self (archive footage)
2011Hollywood Invasion— self
2009Max par Marcel: Lola Montès— Self (archive footage)
2004Peter Ustinov: The Parkinson Interviews— Self
2003Luther— Frederick
2003Charlie Chaplin: The Forgotten Years— Self
2003Winter Solstice— Hughie McLellan
2002Schönbrunn - Quelle der Schönheit— Presenter
2002Das Leben – ein Karussell: Max Ophüls und sein Werk— self
2001Victoria & Albert— König William IV.
2000My Khmer Heart— Self
2000The Ten Commandments of Creativity— Self
1999Hayvan Çiftliği— Old Major (voice)
1999Alice Harikalar Diyarında— Walrus
1999Majestät brauchen Sonne— (uncredited voice)
1998Stiff Upper Lips— Horace Wiggins
1998Alekan le magnifique— Self
1996Ein Abend mit Peter Ustinov— Self
1995The Old Curiosity Shop— Grandfather
1995The Phoenix and the Magic Carpet— Grandfather / Phoenix (voice)
1995Pierre et le Loup— Narrator
1995Salzburger Marionettentheater: Die Entführung aus dem Serail— Narrator
1995Salzburger Marionettentheater:Le Nozze di Figaro— Narrator
1995Salzburger Marionettentheater: Don Giovanni— Narrator
1995Salzburg MarionettenTheater: Così fan tutti— Narrator
1995Queen: Champions of the World— Self
1994Salzburger Marionettentheater: Die Zauberflöte— Narrator
1994The Bible According to Hollywood— Self
1992Lorenzo'nun Yağı— Professor Nikolais
1991The Trouble With Agatha Christie— Self - Actor
1990C'era un castello con 40 cani— Il veterinario
1990Max Ophüls - Den schönen guten Waren— Self
1989Fransız Devrimi— Vicomte de Mirabeau
1989Granpa— Granpa (voice)
1988Ölümle Randevu— Hercule Poirot
1988An Audience with Peter Ustinov— Self
1988The Secret Identity of Jack the Ripper— Self - Host
1988Beethovens Zehnte— Beethoven
1988Peep and the Big Wide World— Narrator (voice)
1988Kinderen van Ghana— Voice-over (English)
1987F1 Review 1987— Narrator
1986Dead Man's Folly— Hercule Poirot
1986Murder in Three Acts— Hercule Poirot
1986Riders of the Wind— Self - Narrator (voice)
1985Thirteen at Dinner— Hercule Poirot
1984Memed My Hawk— Abdi Aga
1984Abgehört— Genosse Kuruk
1982Unglaubliche Freunde— Philip Lester
1982Ölüm Oyunu— Hercule Poirot
1982The Making of Agatha Christie's 'Evil Under the Sun'— Hercuele Poirot
1982Night of 100 Stars— Self
1982Venezia, carnevale, un amore
1981Charlie Chan and the Curse of the Dragon Queen— Charlie Chan
1981Grendel Grendel Grendel— Grendel (voice)
1981The Great Muppet Caper— Truck Driver
1979Ashanti— Suleiman
1979Morte no Tejo— Self
1979Tarka the Otter— Narrator (voice)
1979Einstein's Universe— Himself
1979Through Joy and Beyond— C. S. Lewis (voice)
1979Nuclear Nightmares— Himself
1979Nous maigrirons ensemble— Victor Lasnier
1978Nil'de Ölüm— Hercule Poirot
1978The Thief of Baghdad— The Caliph
1978星のオルフェウス— Narrator (voice)
1978Death on the Nile: Making of Featurette— Self / Hercule Poirot
1977The Mouse and His Child— Manny the Rat (voice)
1977The Last Remake of Beau Geste— Sergeant Markov
1977Un taxi mauve— Taubelman
1977Summa Summarum - Sondersendung zu Heinz Rühmanns 75. Geburtstag
1977Doppio delitto— Harry Hellman
1977The Mermaid Frolics— Self
1976Hayal Şehir— Old Man
1976Kein Abend wie jeder andere— Antiquiätenhändler 'Billy's Kunstshop'
1976Treasure of Matecumbe— Dr. Snodgrass
1975One of Our Dinosaurs Is Missing— Prince John/ Hnup Wan ''Hunp''
1973Robin Hood— Prince John - A Lion / King Richard (voice)
1973Julie's Christmas Special— Self / Santa Claus
1972Hammersmith Is Out— Doctor
1972Short Cut to Haifa— Israeli Truck Driver
1972The Marshal of Madrid
1971Babar Comes to America— Narrator (voice)
1971Gideon— Gideon
1970A Storm in Summer— Abel Shaddick
1969Viva Max!— General Maximilian Rodrigues De Santos
1968Hot Millions— Marcus Pendleton / Caesar Smith
1968Blackbeard's Ghost— Captain Blackbeard
1968Diaghilev: The Years Abroad— Presenter
1968The Story of Babar, the Little Elephant— Narrator / All voices (voice)
1967The Comedians— Ambassador Manuel Pineda
1967The Comedians in Africa— Self (uncredited)
1966Barefoot in Athens— Socrates
1965Lady L— Prince Otto of Bavaria
1965John Goldfarb, Please Come Home!— Fawz
1964Topkapı— Arthur Simon Simpson
1964The Peaches— Narrator (voice)
1963La donna nel mondo— English Narration (voice)
1962Billy Budd— Edwin Fairfax Vere, Post Captain
1961Romanoff and Juliet— The General
1960Spartaküs— Lentulus Batiatus
1960The Sundowners— Rupert Venneker
1957Les Espions— Michel Kiminsky
1957Un angelo è sceso a Brooklyn— Mr. Bossi
1956The Legend of the Good Beasts— The Storyteller
1955We're No Angels— Jules
1955Lola Montes'in Günahları— Circus Master
1955The Moment of Truth— The Marshall
1954The Egyptian— Kaptah
1954Beau Brummell— George, Prince of Wales
1952The Magic Box— Industry Man
1952Le Plaisir— Narrator (uncredited) (voice) (English edit)
1951Nereye Gidiyorsunuz?— Nero
1951Hotel Sahara— Emad
1950Odette— Lt. Alex Rabinovich
1949Private Angelo— Pvt. Angelo
1944The Way Ahead— Rispoli
1943The New Lot— Keith
1942The Goose Steps Out— Krauss
1942One of Our Aircraft Is Missing— The Priest
1942Let the People Sing— Dr. Bentika
1940Mein Kampf - My Crimes— Marinus van der Lubbe
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