With less than a month away from its release, the Batmania has started once again. has released three behind-the-scenes clips from the upcoming The Dark Knight DVD, which hits the shelves on DVD and Blu-ray on December 9. Click below for three behind-the-scenes videos, which include some hints at a sequel.

The follow-up to Batman Begins, The Dark Knight reunites director Christopher Nolan and star Christian Bale, who reprises the role of Batman/Bruce Wayne in his continuing war on crime. With the help of Lt. Jim Gordon and District Attorney Harvey Dent, Batman sets out to destroy organized crime in Gotham for good. The triumvirate proves effective, but soon find themselves prey to a rising criminal mastermind known as The Joker, who thrusts Gotham into anarchy and forces Batman closer to crossing the fine line between hero and vigilante. Heath Ledger stars as archvillain The Joker, and Aaron Eckhart plays Dent. Maggie Gyllenhaal joins the cast as Rachel Dawes. Returning from Batman Begins are Gary Oldman as Gordon, Michael Caine as Alfred and Morgan Freeman as Lucius Fox.

Special Features:

- Gotham Uncovered - How Christopher Nolan and his team developed the new Bat-suit and Bat-pod and composer Hans Zimmer musically characterized The Joker's reign of chaos.

- The Dark Knight IMAX® Scenes - View these 6 action-packed sequences - shot on the largest format possible - in their original IMAX framing, just as they were intended

- Gotham Tonight - 6 episodes of Gotham Cable's premier news program

- The Galleries: Poster art and production stills

- Digital Copy of the Feature Film