Ok, so this does not get off to a good start. It uses so many styles of quick-fire photography, jump-cut editing and unreadable on-screen text messaging that I was positively praying for anything with a tripod, hell - even a tree-trunk would have done, to stabilise the shot. Then, “Doc” (Tanner Cohen) hoves into view and tells us, after a fair amount of whisky and soda, that he has a monumental crver mais...