Cannes: The Cannes Film Festival jury has awarded its coveted Palme d'Or award to Ruben Ostlund's "The Square."

"Oh my god! OK," the Swedish filmmaker exclaimed after he bounded onto the stage to collect the prize.

He led the crowd in a cheer, too.

Ostlund previously won the Jury Prize in the 2014 festival's Un Certain Regard section for "Force Majeure."

Dominic West, Elisabeth Moss and Claes Bang star in "The Square."

Bang plays the curator of an art museum, who sets up "The Square," an installation inviting passers-by to altruism.

But after he reacts foolishly to the theft of his phone, the respected father of two finds himself dragged into shameful situations.