Hollywood studios, over the past few years, have taken steps to bring a number of Japanese manga/anime properties to the big screen - Death Note, Akira, and Ghost in the Shell among them. As of right now, though, only Ghost in the Shell appears to be moving forward; though, depending on your feelings about these properties being "Hollywood-ized" in general (often bringing up issues about "white-washing" and related problems with them), you might prefer if most of these projects never progress beyond early development.
Meanwhile, there are Japanese projects such as Attack on Titan for anime/manga fans to anticipate. Attack on Titan began as a manga in 2009 and has since given rise to light novels, anime, and video games based in a sci-fi world where humanity lives in cities surrounded by enormous walls and does battle with gigantic humanoid creatures (which are known as Titans). The Attack on Titan property is being adapted into a live-action feature by the source manga's creator, Hajime Isayama, along with scribe Tomohiro Machiyama, for the movie's director, Yūsuke Watanabe (Dragon Ball Z: Battle of Gods).
A handful of character posters depicting the Attack on Titan live-action film's cast have made their way online (hat tip Kotaku and Tokusatsu Network). You can check out Kotaku's side by side comparisons, to get a better idea of how the movie's flesh and blood players measure up alongside their hand-drawn and animated counterparts.
Pictured below, we have the Attack on Titan cast members, including Japanese actor Haruma Miura as Eren Yeager; U.S. born model/singer Kiko Mizuhara as Mikasa Ackerman; Japanese model/singer Nanami Sakuraba as Sasha Blouse; Japanese actor Takahiro Miura as Jean Kirstein; another popular Japanese actor/model in Satomi Ishihara as Hange Zoë; and finally, Japanese actor/model Kanata Hongo as Armin Arlert.
Attack on Titan releases in Japan in Summer 2015.