These Sorcerers Are Mad(1978)

Original title: Ils sont fous ces sorciers

Julien is sent by his boss to Mauritius, where he meets Henri, a professional unemployed. One night of drinking, the two men relieve themselves at the foot of a sacred statue. Offended by this sacrilege, the gods punish them by taking away their reflection and making them levitate. While this situation seems unlivable to them at the beginning, the two men end up taking advantage of these disadvantages to solve their personal problems.