A Sunday in Hell (original title: En Forårsdag i Helvede) is a 1976 Danish documentary directed by Jørgen Leth.
The film is a chronology of the 1976 Paris–Roubaix from the perspective of participants, organizers and spectators. Paris–Roubaix is the most famous and usually the most dramatic of the spring classics. Much of the latter portion is over narrow, cobbled tracks that choke with dust on dry days and become slick and muddy in rain. For the riders it’s a challenge to keep going without puncturing or crashing. The film captures not just the events of the 1976 edition but the atmosphere of a professional race.