How to Have Sex by Brit Molly Manning Walker has won the Un Certain Regard Prize at the 76th Cannes Film Festival, handed out by the jury chaired by John C Reilly (who was flanked by Alice Winocour, Paula Beer, Davy Chou and Émilie Dequenne) . Produced by the UK's Wild Swim Films together with Greece's Heretic Films and Belgium's Umedia, the feature debut is being sold overseas by mk2 Films.