Plus beau que moi tu meurs (1982)

Aldo and Marco are twins. Marco, a parish priest, has always been his mother's pride and joy, whereas Aldo has a history of repeated prison stints. A womanizer and high-rolling gambler constantly in need of cash, he frequently finds himself embroiled in wild, shady schemes—most of which go awry. Wanted by the police, he flees to Tunisia, posing as his brother Marco and disguised as a priest. There, he reconnects with his childhood friend Prosper, dragging him into a life of reckless escapades, chasing after a million-dollar fortune and pretty women alike.