"Parasite," a wickedly humorous suspense movie about class struggles directed by South Korea's Bong Joon-ho, won the top Palme d'Or prize at the Cannes Film Festival on Saturday, on a big night for newcomer filmmakers too.

Bong, who made his mark at Cannes in 2017 with Netflix-produced "Okja," is the first South Korean to nab the award at the world's biggest cinema showcase.

The festival also shone a light on a debut feature-length movie by Franco-Senegalese director Mati Diop, whose haunting migrant tale "Atlantics" clinched the runner-up Grand Prix award.