The Milky Way (1969)

Luis Buñuel sends two French vagrants, Pierre and Jean, walking the pilgrim road from Paris to Santiago de Compostela, then lets the road slip through time. Along the way they meet heretics, schoolchildren reciting heresies, the Devil and Christ himself. This is the oddest pilgrimage on the list and the one to watch after a straight Camino film, because it asks what belief looks like when it is argued over rather than felt. It is a surreal satire rather than a travelogue, so come for wit and provocation, not for the landscape.