Green Lantern was a much-heralded comic book movie for the summer, and DC's only response to Marvel's 4 or so blockbusters. I was totally hyped when San Diego Comic-Con premiered this trailer, and I was rooting for it. A lot of money was on Ryan Reynolds and Blake Lively to pull off the Emerald Avenger, and in my opinion, it didn't work.
Ryan Reynolds was supposed to be great as Hal Jordan. Unfortunately, he comes off as a guy who receives a great gift without having done anything to deserve it. He refuses the responsibility that comes with it, then has an odd change of heart that is barely developed -- then he somehow saves the day, and gets the girl. It's standard super hero fare that has little depth to it.
What makes it unique is the special effects. When Hal Jordan receives the ring, he's coated in a green sheen, as are all the corps on Oa, the planet that houses the Green Lanterns of every sector of the universe. Parallax serves as a mindless villain, as well as scientist Hector Hammond. Hector is a bit more carefully crafted; he's played up as a foil to Hal, both of whom had a difficult father-son relationship, except Hector's has more flesh to it.
All in all, I am disappointed with the Green Lantern movie. The comic books have been doing incredibly, and the movie did not meet that standard. Sinestro was the one character who felt real to me, because he was persistent in tracking Parallax, while Hal meandered his way to defeating a galactic threat and getting the girl. I think the movie could have been improved by putting a new emphasis on the Green Lantern Corps., not the one actor of Hal Jordan, but then again, I'm just a fan, not a director =/.