The revenge genre is fraught territory for feminist film fans, because it virtually always begins with violence (often sexualized violence) against women. ‘John Wick’ sidesteps this problem by replacing the victimized woman with a dog: Keanu Reeves’s title character, a mild-mannered retired assassin, gets back into the criminal underworld and goes on a brutal rampage to avenge his killed dog. What follows is an extremely well-executed but completely non-innovative revenge flick, which is nevertheless probably my favorite since ‘Kill Bill Vol 1.,’ in no small part because the revenge isn’t inspired by the victimization of a woman.