Perhaps you’ve heard that The Imaginarium of Doctor Parnassus, the latest cinematic brainteaser from director Terry Gilliam, is the final work of the late actor Heath Ledger. Gilliam brought in heavies Johnny Depp, Jude Law and Colin Farrell to replace Ledger, adding a meta layer to an already trippy filmgoing experience. So what is Parnassus about? Honestly, based on the trailer, we’re not exactly sure. A thousand years ago, Dr. Parnassus (Christopher Plummer) made a deal with the devil (Tom Waits!) which leads to all kinds of heavy, overwrought makeup, crazy special effects and a Mini-Me cameo. Ledger (and Depp and Farrell) plays a mysterious stranger in a traveling theater company (we think) who must save a young girl from the clutches of Parnassus and the Devil. At the very least, the trailer lets Gilliam show off his visual prowess in a movie reminiscent of his underrated comedy, The Adventures of Baron Munchausen. And, if nothing else, the Ledger factor should draw in the curious… even if they’ll leave scratching their heads.