The director has created a masterpiece here, just as he did with “Dunkirk”. What can we say about three hours of brilliant cinema without a single dull moment? Christopher Nolan is always brilliant. It’s cinema that has become small

By casting Nyong’o as Elena, the director is injecting a political dimension into the film. But who knows what the audience will make of it, given that they are now accustomed to an increasingly diverse society – where even the faces of film stars have become more varied – and to a world of cinema where we have already seen everything portrayed by everyone