Adémaï au poteau-frontière English: Ademaï in the frontier post, is a French comedy film from 1950, directed by Paul Colline, written by Paul Colline, and starring Colline as a peasant and featuring Louis de Funès as a soldier.
The peasant Adémaï, returning home, gets lost in the forest and knocks down a border post.
In his haste to replant it, he installs it upside down.
The patrols of the two bordering - and antagonistic - countries replant the border post facing in a different direction each time they pass it.
This article related to a French film of the 1950s is a stub.