The Paris-Roubaix Classic: 273 kilometers of torment across the bone-crunching pav of northern France. In 1976 the celebrated Danish film director, J rgen Leth, embarked on an ambitious project to capture the spirit of this spectacular and cruel one-day race. The resulting film, A Sunday in Hell, has become the most admired cycling documentary of all time, and its revolutionary camera and sound techniques have forever changed the way the...