The Buzz: Green Lantern & Thor Photos, Mark Ruffalo Might Be Hulk, Will Smith Joins Vampire Craze, & More! Dan Koelsch, July 17, 2010 The Buzz is a feature in which we round up the biggest and most popular film and television stories of the week. Why go through pages of blogs just to find out what everyone is talking about? We’ve got it all right here. Check out all the stories after the…