Back in 1970s, before the Premiership, Sky TV and WAGS came to characterise the beautiful game, football managers were almost exclusively gruff Northerners who smoked 60 a day and avoided publicity like the plague. That is part from Brian Clough, perhaps the most charismatic, media-savvy and complex manager to have graced the sport. The film tells the story of the most bizarre spell of his otherwise illustrious career, but for those not up on their 70s football, here's our frankly indispensible visual guide to The Damned United.