Fassbender, 47, had starred opposite Knightley in the 2011 film A Dangerous Method, about the relationship between psychoanalysts Carl Jung (Fassbender) and Sigmund Freud (played by Viggo Mortensen). Knightley, meanwhile, played Jung’s patient-turned-colleague Sabrina Spielrein. The three become embroiled in a love triangle.

Kiera Knightley has revealed that she shockingly purchased sex-toys for her co-star during the filming of a movie and the reason is hilarious. There’s all sorts of things actors get up to when the director shouts ‘cut’, but a trip to Anne Summers isn’t usually it.