By Marta Balaga According To The variety Ukrainian filmmaker Kateryna Gornostai makes a case for optimism with the Berlinale doc “Timestamp.” “It’s a sad film, but there’s a lot of hope in these kids and in our education system that still works. It was crucial to make a film about war, but war is not in the frame,” she told Variety. Bowing in Berlinale’s main competition, “Timestamp” follows Ukrainian students and teachers, trying to maintain normalcy despite constant danger and the world’s waning interest in their plight. “We were afraid of [Donald] Trump winning the [U.S.] presidential seat again. But you know, the worst has already happened: we lost our people and our families. At this point, we’re a bit fatalistic. So now … We just observe,” she said. Sometimes, whe...