Ryan Reynolds and Co. Teach Green Lantern 101 in Behind-the-Scenes Featurette

What's a Green Lantern? Why are your local nerds suddenly chanting the same oath over and over again? What the heck is a "construct?" Newbie Green Lanternites can learn all this and more in WB's new behind-the-scenes featurette for the June 17 superhero flick, while hardcore fans get new glimpses of Parallax doing its thing on an entire city block. There's something for everyone!

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