When people talk of a “development hell,” I’m pretty sure they’re envisioning the ninth circle as a private party for the Watchmen film, with buddies Ghostbusters 3 and Halo: The Movie in attendance. Seeing is believing though, and with the release of Zack Snyder’s kick-ass Watchmen trailer, we finally have visual confirmation that the movie will actually, at some point, exist. In the least, I…