CANNES, May 20 (Reuters) - Filmmaker Steve McQueen's new documentary "Occupied City," which premiered at the Cannes Film Festival this week, juxtaposes modern-day shots of Amsterdam against narration of what happened in specific locations in the city during Nazi occupation, with the aim of drawing a connection between the time periods. The British director of the 2014 Oscar-winning film "12 Years a Slave" said that looking at the past was important for understanding the war in Ukraine or the rise of the far right. "It's just putting things into context - how we're here, how did we arrive here today,"...