A recently released documentary film produced by murdered opposition leader Alexei Navalny’s Anticorruption Foundation is making waves among Russians. Titled “The Traitors,” the film tries to figure out what went wrong in Russia in the 1990s — and points fingers at former President Boris Yeltsin and a number of oligarchs and reformers. As two Russian analysts see it, the film’s “main goal … is to seek an understanding of how Russia derailed in the years after the Soviet Union’s collapse in 1991. In the film-makers’ view, the country had a chance to become a normal, rules-based democratic country, but failed...