I've no idea what he was in
More a case of what he wasn't in
Among many many others I saw him in I Claudius, Lord of the Rings, Harry Potter, Alien, The Elephant Man, Champions, The Naked Civil Servant, An Englishman in New York, Captain Corelli''s Mandolin
I believe he is in Jackie, the new release about Jackie Onassis.
An exceptional talent.