I've been eagerly anticipating Argo since it was first announced; this particular CIA covert mission is one of the strangest ever, and it involved Jack Kirby to boot. The first trailer is very good, and it shows off the way that Affleck appears to be handling the dual nature of the film's tone - it's serious sometimes, it's silly sometimes, and the two have to live together peacefully.
How much did I like the trailer? When the onscreen text cheesily says "They weren't making a movie... They were making history" I actually laughed instead of groaned.