Tenet is a very difficult movie to review, perhaps because it’s so darn confusing. It’s the kind of film, like writer/director Christopher Nolan’s previous ones, needs to be viewed multiple times in order to at least have a basic grasp of what is transpiring. His latest, which was the first film I saw in theaters after Regal Cinemas [temporarily] reopened, is his most confounding one yet — in fact, the only one who is 100% sure of what is going on is, more than likely, Nolan himself.