One such scene took place in Odessa, Ukraine, this week where, as Reuters reports, the familiar refrain of "Don't Worry, Be Happy" could be heard as the fighting raged on.

‘Triangle of Sadness’ Review: Don’t Worry, Be Happy Ruben Ostlund won the top prize at Cannes for this preening, obvious satire of contemporary hypocrisy.

From behind sandbags and anti-tank barriers in front of Odessa’s Opera and Ballet Theatre, a familiar if unexpected melody drifted across the near-deserted streets of Ukraine’s main Black Sea ...