In the 1964 film Woman in the Dunes a man spends seven years trapped in a sand pit. That summary and the film’s running time of two hours and twenty minutes may put some viewers off, but that would be a mistake. This is a beautiful film with a mesmerising minimalist soundtrack, directed by Hiroshi Teshigahara, that became a Japanese New Wave classic. Andrei Tarkovsky included it in his list of the best ten films ever made. Like Buñuel’s The Exterminating Angel the premise may be balmy, but the consequences that flow from it takes us to the heart of what it means to be human.