VENICE, Italy (AP) - Restricted travel, quarantine and positive COVID-19 tests meant that Majid Majidi's appearance at the Venice Film Festival for Iranian drama "Sun Children" (Khorshid) was an achievement in itself. The film follows the story of Ali and his three friends on the streets of Tehran, as they try to find hidden treasure, digging a tunnel underneath a local charity school for street kids and child laborers. "It was difficult to come here," the director told Associated Press on Monday. "This was a whole new experience, like a new life." For 14-year-old lead Rouhollah Zamanisaghselou, in his first ever acting role, the coronavirus put a stop to his moment in the spotlight, after he tested positive and was unable to travel to Italy as planned. "I told him when he was working hard digging in that tunnel that this film will become famous in the world and you will forget the pains. Then (when he tested positive for the virus) he told me: 'Mr. Majidi what should I do?' I was left behind with the pain." Zamanisaghselou and many of the cast members were child laborers themselves when they were interviewed for the movie. Majidi explains that the casting process was extremely difficult but rich with talent. "I actually interviewed two to three thousand kids and there was a lot of intelligence and potential kids in those groups," he said, adding that their backgrounds meant they had a lot of depth. "Because of the tough times they have been through, they are much more receptive and kind of older than their age and that's why they learn faster and better," Majidi said. "This was a huge encouragement and inspiration for them to become artists and actors, they couldn't even dream of such a thing before. This made them focus very closely and...