“WHERE IS YOUR COUNTRY GOING? It’s headed to an abyss, and it could bring the whole world with it,” Vytautas Landsbergis warned Soviet leadership in 1990, as it tried to strangle a newly independent Lithuania in the crib with bluster, blockades, and tanks. Watching this goateed music-professor-turned-leader steer the ship of state through the storm in Sergei Loznitsa’s Mr. Landsbergis, it was impossible not to think of the Russian invasion of Ukraine, even within the warmhearted Midwestern haven for documentary art that is the True/False Film Fest, where guests basked in the good vibes of being