A splendid cast work through the complications and stages of grief to provide a scathingly anti-nationalist warning from history.

"Frantz" offers a sympathetic, if dark, look at the awful wake of war, at the cost of institutional violence, as well as the cost of surviving.

Ozon's latest is a twisty-turny post-War mystery - think 'A Very Long Bereavement' - that boasts a kaleidoscope of quiet emotions. It unfolds slowly, but rewards patience with strong performances and a swooning third act.

The use of black-and-white and the occasional shift to color are more than gimmicks. They relay tone and mood from the director, but more importantly perspective from the characters.