Alex Stojanov of deviantArt has made posters for all three of Christopher Nolan's Batman films. They are very similar to the posters for the Star Wars films and can be seen below.
The poster for Batman Begins features Batman (Christian Bale), Jim Gordon (Gary Oldman), Ra's al-Ghul (Liam Neeson), Dr. Jonathan Crane AKA The Scarecrow (Cillian Murphy) and Rachel Dawes (Katie Holmes), as well as the sword fight on the ice between Bruce and Ra's:
The poster for The Dark Knight once again shows Batman, along with The Joker (Heath Ledger), Harvey Dent (Aaron Eckhart), Rachel Dawes (Maggie Gyllenhaal) and the Batmobile:
Finally, the poster for The Dark Knight Rises once again features Batman and Gordon, but also Bane (Tom Hardy), Catwoman (Anne Hathaway), Alfred Pennyworth (Michael Caine), Miranda Tate (Marion Cotillard), the Batwing and the brawl between Gotham's police department and Bane's mercenaries: