Sergio Leone, all the films he made as director were perfect -
'A Fistful of Dollars',
'A few Dollars More',
'The Good the Bad & the Ugly',
'Once apon a time in the west', (which many beleive is the best western of all time)
& finally his De Niro gangster epic 'Once apon a time in America' (The International English release, that is, the American cut was/is atrocious)
Mind you he produced & acted in some pretty trashy films, But those 5 films he Directed are amongst the best films of all time.
Orsen Wells
Tarrantino
Coppola
Kubrick
Lynch
Scorcese
Sergie Eizenstein
Leni Riefenstahl (she directed
'Triumph of the Will'the most notorious documentary of all time & also the greatest propaganda film of all time to, all that footage you see in war documentaries showing Nazis marching about in Nuremburg is from her film 'Triump of the Will')
Fellini (of 'La Dolche Vita' fame)
George Miller (of 'Mad Max' fame)
Speilburg (for 'Schindlers List', I wouldn't call any of his other films truelly great)
Peter Greenway (for such stylish biting masterpeices of
'The Cook, the Thief, His Wife, and Her Lover', one has to be a genius to make film that is both as beautiful & as disgusting as this one)
Mike Leigh
That'd do for now.
BTW, 'Saving Private Ryan' was/is crap, as
Specialist said the story line is crap, plus its not even realistic (a film doesnt have to be realistic to be great, but many people praised 'SPR' for its realism) - Mustangs weren't even ever used for ground attack in Normandy (except for the A36 ground attack version, which was only used in the Nth African & Italian campaigns, Mustangs were only used for bomber Escort duty in Europe, till the last days of the war), It was/were RAF Typhoons/Tornados that provided virtually all the close air support over Normandy.