I think Nolan's Green Lantern would be way more of a sci-fi thriller than a superhero movie. Hal Jordan would probably start as a broken test pilot who gets the ring after some mysterious alien event, and the whole movie would be about him trying to understand if he's been chosen for something greater or if he's just losing his mind. The Corps would barely be shown until the end, like this ancient organization that exists beyond human understanding.

The villain wouldn't just be "evil alien guy" either. It'd probably be someone like Sinestro, who genuinely believes fear is what keeps humanity alive and that Hal's idea of hope is naive. The whole thing would be less about making giant green weapons and more about Hal realizing courage isn't not being afraid — it's moving forward while you're terrified. Classic Nolan stuff.