James Corden and Dominic Cooper have been friends for almost 15 years [1], and even lived together for a while, so when the pair get the chance to hang out for work-related reasons, it's always a joy to watch. This week, Dominic visited The Late Late Show with James Corden to discuss his new movie [2] Mamma Mia Here We Go Again, but talk quickly turned to their enduring friendship. James challenged his pal to a game of "Shock Therapy", which involved them answering questions about each other, threatened with an electric shock if the answer was wrong. Dominic (or "Nominic", as fellow guest Rebecca Ferguson [3] referred to him) didn't seem confident in his ability to answer, though he did nail it on a couple of occasions. James, meanwhile, proved that he knows the Cooper family pretty well . . . but he's obviously not a fan of Preacher! Watch the pair battle it out (and get shocked) above, then remind yourself of the sweet way Dominic had a hand in James's marriage [4].