It's summer. The Tour de France is coming and senior fans arrive in their camper vans in this endearing documentary that revels in its visual humour.

Four men watch a projected image: a man smoothly moving up and down three sets of escalators. A gang of identical men emerge at the top of the stairs, and start to push, chase, or trip him. He tumbles and falls, and starts to fall apart, losing limbs here and there.