As rumored a few weeks ago and in a bit of inspired casting, Aaron Eckhart looks set to join Christopher Nolan’s The Dark Knight as Harvey Dent, a.k.a. Two-Face. And, also in fanboy casting news, the cast of James Cameron’s Avatar fills out, with Wes Studi, Sigourney Weaver, and others joining Sam Worthington and Zoe Saldana for the 3D-epic.