Parents need to know that Tenet is a spy action movie directed by Christopher Nolan that stars John David Washington as an international secret agent who must save the world from World War III. The film opens with terrorist activity at a concert, and there's a lot of action fighting throughout the film. It's mostly bloodless, but there are guns, shootings, explosions, crashes, and beatings. Domestic abuse and child custody are a big part of the storyline. Strong language is infrequent, so when it comes, it's noticeable: Expect to hear "f--king bitch," "s--t," etc. Characters drink socially (wine, vodka), and a suicide pill makes an appearance. Like many of Nolan's films, Tenet explores the concept of time, and it is complicated: This isn't a movie where you can check your brain at the door. Save time to talk about it afterward, because it's hard to catch all of the information -- often because audio involving key details is muffled by masks, walkie-talkies, etc. But the ultimate message is one about being the hero of your own story, and characters demonstrate teamwork, perseverance, courage, curiosity, integrity, and empathy. Robert Pattinson and Elizabeth Debicki co-star.