Warner Bros. has unleashed four character posters for their upcoming comic book adaptation, Green Lantern directed by Martin Campbell. The posters feature Ryan Reynolds as Hal Jordan/Green Lantern, Blake Lively as Carol Ferris,  Peter Sarsgaard as Dr. Hector Hammond and Mark Strong as Sinestro. Check them out below!

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Synopsis:

In a universe as vast as it is mysterious, a small but powerful force has existed for centuries. Protectors of peace and justice, they are called the Green Lantern Corps. A brotherhood of warriors sworn to keep intergalactic order, each Green Lantern wears a ring that grants him superpowers. But when a new enemy called Parallax threatens to destroy the balance of power in the Universe, their fate and the fate of Earth lie in the hands of their newest recruit, the first human ever selected: Hal Jordan.

Hal is a gifted and cocky test pilot, but the Green Lanterns have little respect for humans, who have never harnessed the infinite powers of the ring before. But Hal is clearly the missing piece to the puzzle, and along with his determination and willpower, he has one thing no member of the Corps has ever had: humanity. With the encouragement of fellow pilot and childhood sweetheart Carol Ferris, if Hal can quickly master his new powers and find the courage to overcome his fears, he may prove to be not only the key to defeating Parallax…he will become the greatest Green Lantern of all.

Green Lantern stars Ryan Reynolds, Blake Lively, Peter Sarsgaard, Mark Strong, Tim Robbins, Temuera Morrison, Angela Bassett, Taika Waititi, Jay O. Sanders and Jon Tenney.

Green Lantern is slated to hit theaters on June 17, 2011.