The newest release about this specific project offers a peek beyond the looking-glass. What’s Mad Hatter about? Although plot details are currently shrouded in secrecy, it’s likely that we’ll learn about the titular character’s life in Wonderland. It’s possible that the root of his insanity may be examined and even given an origin story of its own. Scott Mosier (The Grinch) has already been attached to the project, with Adam Nagle (Aquaman and the Lost Kingdom) set to produce the animated feature.