Psycho thrillers: five movies that teach us how the mind works

Power, violence, death and reality " the movies can teach us plenty about life's big issues. From the Godfather to Groundhog Day, five psychologists pick the films that tell us what makes humans tick

Ten days ago in London, the Hungarian director Liszlo Nemes hosted a preview screening of his film, Son of Saul. He explained that if people didn't want to stay for the Q&A afterwards, that was fine; he wouldn't take personal offence. The audience giggled politely. "That's the last laugh you'll have for a while," he told them.