Aboard the speeding locomotive of “Bullet Train” ride at least five assassins, one venomous reptile (a snake on the train), countless glib Guy Ritchie-esque slo-mo action sequences, and one bucket-hat wearing Brad Pitt.
It’s a lot of ingredients that go into this candy-colored, battle royale of a movie. But the only one that really matters is that last one. At 58, Pitt’s star power has never seemed so easy and so natural. Radiant in . . .