Okay folks, it’s almost time to grab your masks (or not, depending on the chain), use some hand sanitizer, prevent yourself from coughing and sneezing, and sit about six feet apart from people to “relax” and enjoy the first major blockbuster of the summer movie season, “Tenet.” That’s right, we are merely weeks away from Christopher Nolan’s new film ushering in the post-COVID-19 theatrical experience for millions across the world.