 The film treads a fine line between realism and fantasy, occasionally dipping out of the world as we know it to visit a seductively strange vision of the capital that appears part-futuristic and part-medieval (and which gives the film its name).Riley follows "Control" by leaning heavily on middle-distance stares and up-turned collars, while Green is a troubled art student with a good line in haute couture, and Philippe is a troubled ex-soldier.The main problem is that by the time this tricksy film finally plays its hand, many viewers may already have been lost at the wayside."