Perhaps one the most shocking and unconventional scenes in 2008's the Dark Knight involved the film's love interest, Rachel. Not only was it revolutionary for a superhero film, but was a powerful emotional punch. However, this also left the series devoid of female characters, something that director Christopher Nolan plans to rectify in the upcoming sequel.

According to Deadline and Comingsoon.net, Nolan has approached actresses Anne Hathaway, Keira Knightley, Blake Lively, Natalie Portman, Naomi Watts and Rachel Weisz for a villainous role and that of a new love interest. This adds fuel to the fire that Catwoman may appear as the villain for the upcoming Batman film. However, there is also Tom Hardy to consider, who was also recently cast for an atagonistic role.