Full disclosure; I know absolutely nothing about the Dungeons & Dragons role-playing game. I've picked up bits and pieces here and there from TV shows like Strangers Things and The Big Bang Theory. I appreciate its staggeringly enduring popularity for almost 50 years now. And I always admire the passion of a loyal fanbase. But Hollywood attempted a big-screen DnD adaptation 23 years ago. It was a spectacular failure. The thought of a reboot wasn't exactly filling me with joy, but, lord, was I wrong. Standing as the first big surprise of...