The Joint Brothers (1986)

After he is dismissed from his umpteenth job, Momo is kicked out of the family home by his fed-up father. He immediately joins his buddy Manu, who is also penniless having just lost his job at a cafeteria. The two decide to ask shady nightclub owner Sammy for a job, and he promptly hires them to transport back two statuettes from Amsterdam. Momo and Manu soon find out that these art objects are stuffed with drugs, but still manage to carry out their mission. They receive one kilo of grass in exchange, which they sell immediately. But while the business is lucrative, they discover that it's not so easy to become a full-fledged drug dealer...

Source: TMDb