…one of [Man Up’s] most memorable sequences finds the duo on the dance floor, conducting an argument about Pegg’s failed marriage in the midst of an impressively choreographed dance-off to Duran Duran’s “The Reflex.”  “It was just this idea that Tess had, that we all have a dance routine somewhere that we learned unconsciously as youngsters in the discos,” Pegg says, “and that Jack and Nancy, whilst they’re arguing, find this odd synchronization, which kind of hints at the fact that they are very much in tune with each other”