The Karlovy Vary International Film Festival toasted its 80th birthday in style during the Cannes Film Festival with a bustling luncheon — complete with a giant birthday cake — on the beach. Variety participated in the event, held at Plage Des Palmes, in partnership with the festival. On hand to lead the celebrations were the Karlovy Vary chair Krystof Mucha and artistic director Karel Och, plus Jakub Havrlant, whose Rockaway Arts is the majority owner of the festival. Variety ‘s publisher and