Doug, the incessant funster played by Gregory Fung in this jaunty but finally poignant buddy comedy, joins the likes of The Hangover’s Alan Garner as the nightmarish BFF most likely to give you an aneurysm. After losing a round of bagsy, childhood pal Max (Reece Henderson) is saddled with chaperoning Doug to their annual lads’ night out, taking place in, of all places, Orford, Suffolk. Their car gets a flat tyre, leaving them stranded the titular 49 miles from their destination; of course Doug insists that walking the whole stretch will be a good laugh.