LOADING ERROR LOADING The Oscars’ “In Memoriam” segment on Sunday opened with a tribute to a real-life crusader outside of show business. Russian opposition leader Alexei Navalny, who died last month in an Arctic prison, had his close-up to kick off the homage that eventually included the late Hollywood stars Alan Arkin, Piper Laurie, Harry Belafonte, Ryan O’Neal, Carl Weathers …
