Two new documentaries from Ukrainian filmmakers highlighting the carnage wrought on their country by Russian aggression — and the insidious effects of Kremlin propaganda — premiere at the Sundance film festival this week.
“20 Days In Mariupol”, which screened Friday night, portrays in harrowing detail the arrival of war last year to a city that became one of the invasion’s bloodiest battle sites, all captured by video journalists under siege.
And “Iron Butterflies”, premiering Sunday, chronicles the 2014 downing of Malaysia…