As the host and director of the Adventures in Golf series, film-maker and golfer Erik Anders Lang is accustomed to exploring some of the sport's most intriguing stories.
Watson is, of course, synonymous with The Open as a five-time Champion Golfer of the Year. However, the film also explores the perhaps lesser-known story of Allan Robertson, who can be considered the event's unsung hero.
Robertson - the first man to break 80 at St Andrews - was the leading player of his era, known as the 'Champion Golfer of Scotland'.
As Ken Goodwin, the secretary at Prestwick, explains, "When he died in 1859, the big question was 'who is the Champion Golfer now?' The members here thought, after our Autumn Meeting we'll have a match. And that's how The Open came about, to find out who was the new champion."
A Brief History of The Open charts the countless developments that have since taken place, in both the Championship and the wider world, following the first edition of golf’s original major in 1860.
"The golf world looks nothing like it did back when the Challenge Belt was being handed off at Prestwick," says Lang. "[But] when it comes to The Open Championship, one thing remains the same, year after year.
"We all gather together as fans to celebrate the Champion Golfer of the Year. The Open is undoubtedly golf's greatest story."