For the past two decades ten men from Cornwall's Port Isaac have met on the village quayside every Friday summer evening to sing rousing sea shanties and traditional folk songs for free beer. Then, in March 2010, everything changed when stardom came to this bunch of friends who had sought neither fame nor fortune. Within weeks of a record producer hearing their passionate singing, they had a million-pound deal and were booked to appear at Glastonbury. By the end of that month a massive tour was underway and Ealing Films had bought the rights to their story.