It was an inspired bit of casting for writer-director Guy Ritchie to make former heartthrob Hugh Grant the weasely linchpin of his British caper flick “The Gentlemen” (2020). Ritchie brings a unique style to this type of film and Grant proves to be a worthy air traffic controller as scenes cut from one character’s perspective to another and back and forth across time. Matthew McConaughey is trying to sell his (illegal) business and he thinks he has a buyer, but cutthroat hijinks ensue. There’s bullets, blood and belly-laughs – sometimes all at once. Ritchie makes it look easier than it is.