The cast of DC and Warner Bros. upcoming big screen adaptation of Green Lantern, featuring Ryan Reynolds as the titular hero and with Martin Campbell directing, has just grown by two. According to The Hollywood Reporter, Temuera Morrison, best known as Jango Fett from the Star Wars movies, has joined the cast as well as filmmaker-actor Taika Waititi.

According to the trade, Morrison will take on the role of Abin Sur, a member of the Green Lantern Corps who gives Hal Jordan his power ring before dying. Waititi will play Hal Jordan’s best friend. They join a cast that, in addition to Reynolds as Jordan, includes Tim Robbins, Blake Lively, Peter Sarsgaard and Mark Strong as Sinestro.

With the addition of Morrison, who I’ve been a fan of since his earlier work in Once Were Warriors, Green Lantern looks to be shaping up as quit a film. Even if it’s being filmed in 3D, which may or may not be a good thing, I’m still getting pretty excited to see it when it’s eventualy released.

Green Lantern begins filming this week in New Orleans with a release scheduled for June 17, 2011.

With more and more news hitting daily on the upcoming Green Lantern film, there will of course be more information hitting the web that shouldn’t actually be out there. Between how big of a film this is turning out to be, and how much of a fanbase the DC character has developed over the decades of print, there were bound to be a few leaks.

With that news comes some potential new concept art for the alien life that we’ll be seeing in the film. Martin Campbell already confirmed that we’ll be seeing Kilowog, Abin Sur, and Toma-Re in the upcoming flick, but these is the first time we’ll be seeing what they could actually look like.

The images first hit on one of the Green Lantern fan message boards, and was later confirmed by several sources to be legit. This comes only days after Warner announced that Sony will be doing the special effect work for the upcoming film.

Check out the concept art after the jump, and be sure to keep it here for more Green Lantern news as it comes our way.