The latest film from Ruben Ostlund received an eight-minute standing ovation after its screening in Cannes and also won the festival’s top prize, the Palme d’Or, and this has left me entirely baffled: what, the film I’ve just seen? The one where every scene is far too long? The one billed as a ‘satirical black comedy’ even though the targets are easy and it doesn’t say anything and I didn’t laugh once? That film? I should add, it’s not for the emetophobic.