Ukrainian President Volodymyr Zelenskyy is to deliver a live video address at the opening Thursday of the annual Berlin International Film Festival, whose organizers say they will pay special tribute this year to Ukraine and to protesters in Iran. Zelenskyy, a former comedian and actor, features prominently in Sean Penn’s film about the war in Ukraine, “Superpower,” which will have its world premiere at the Berlinale. This year's event, which runs until Feb. 26, will see 18 films compete for the Golden and the Silver Bear awards.