Scenes like these turn characters into garbage that the hero has to bag up and toss. That’s standard genre posturing, but Logan is as much a hero as an outlier and can’t descend into nihilism. He needs a cause, a banner to hoist. So the movie complicates its bloodletting, including through a story line about corporate violence run amok in a near-lawless future. Enter the rogue geneticist (played with restrained flair by Richard E. Grant) with a venal aide-de-camp (a charismatic Boyd Holbrook) and an army of paramilitary cyborgs. These, in turn, connect to Laura (a terrific newcomer, Dafne Keen), a watchful, feral child who is fleeing across borders. Before long, Logan is playing the resistant head of a household that includes Laura as the