Amnesty International will campaign for the Ukrainian filmmaker Oleg Sentsov at the Dutch Film Festival in Utrecht. The human rights organization will try to collect as many signatures as possible at the film event in the coming days for a petition against the imprisonment of Sentsov after a 'show trial'. The director, who was a guest at the Rotterdam Film Festival two years ago, was sentenced to twenty years in prison in Russia at the end of last month for criticizing the Russian occupation of Crimea.