I'm happy someone mentioned
Dr Strangelove, it is in the movies filament together with
2001: A Space Odyssey and
Clockwork Orange. Stanley Kubrick was an absolute master. Also in the same league for telling the story is Kurosawa's
Ran,
Seven Samurai and
The Rain is Falling.
Please don't mention Titanic in the same sentence as Blade Runner. One is a horrible blockbuster with atrocious acting and a contrived script, the other is a marvellous masterpiece of aesthetic and visionary Sci-Fi.
Blake Edward's
Return of the Pink Panter with Peter Sellers is among the best written comedies I've seen. And from the same time,
The Ruling Class with Peter O'Toole is an incredibly well made sarcasm of British aristocracy.
For pure writing and story telling Kenneth Branagh's
Henry V is extremely interesting, especially how he handles the problem of the narrator in movie adaptations of Shakespeare plays.
And I too want to chime in with the praise for
Raiders of the Lost Ark 