“The Equalizer 2” (*1/2 out of four) was a dull sequel to the dull 2014 original which became a surprise smash showing the further vengeance of a former CIA agent turned rogue vigilante (Denzel Washington) who is trying to lead a peaceful life as an Uber driver but is brought back and drawn into underworld espionage by the murder of his close friend (Melissa Leo). Opens with a great train sequence but then quickly derails, as film becomes talky and tedious and actually gets slower as it goes along. Even Washington’s effortless charisma can’t breathe much life into this one. This marks the fourth collaboration between him and director Antoine Fuqua but this is no equal to their previous teaming on “Training Day” and “The Magnificent Seven.”