Taking into account Christopher Nolan's usual secrecy and mystery surrounding his film-making, we've had a veritable shower of The Dark Knight Rises promo material, from viral websites to a grand total of 4 trailers released online - though trailer number four was the Nokia sponsored sneak peak. Now Batman-News.com have found an entry on the Alberta, Canada Film Ratings website listing Dark Knight Rises, The (trailer #4) that was posted on Monday, with a runtime of 2:13. As they say though, we might need to tamper down our excitement as the release of yet another full-length trailer may be too good to be true. It may indeed just be the Nokia version released on the big screen, however preceding another major comic book event movie with a re-run of an online trailer would seem to be a wasted opportunity. So here's hoping they're going to pull one more cat out of the bag (sorry, just couldn't help it). The Amazing Spiderman is released in the UK on 3 July 2012, and stars Andrew Garfield, Emma Stone and Rhys Ifans. Directed by Marc Webb. The Dark Knight Returns is released in the UK on 20 July 2012, and stars Christian Bale, Tom Hardy, Anne Hathaway, Gary Oldman, and Morgan Freeman. Directed by Christopher Nolan.