The Wick -verse, which owes more than little to the outrageous criminal underworlds of Seijun Suzuki’s Branded To Kill and Quentin Tarantino’s Kill Bill , is a place of façades, manners, and obligation.
“Gunpowder Milkshake” is the latest in a long line of action films about double-crossed hitmen on the run from their retainers, from “Le Samourai” to “Branded to Kill” to “In Bruges”; it’s also the latest attempt at a “John Wick” riff, and a riff of poliziotteschi movies, and a whole bunch of other things at the same time.