The French don't boo, they hou. Imagine a herd of sarcastic cows, and you'll get the general idea.
At the Cannes Film Festival, vocal dissatisfaction at the end of a film isn't rare, but the reception for Nicolas Winding Refn's The Neon Demon at its first press screening was one for the history books.
A number of critics stood to yell abuse at the screen. "Tonterias!" (Garbage!) someone bellowed in Spanish.
Then the dedication "For Liv" appeared over a shot of an arid desert - Refn's wife is the Danish actress Liv Corfixen. "F*** you, Liv," someone shouted back.