Shane Black, the writer of the Lethal Weapon movies and the director of Kiss Kiss Bang Bang, has an unenviable job. He has to deliver what is the first salvo in Marvel's "Phase Two" comic book film series, culminating in Avengers 2 in a few years' time.
Look at the Iron Man legacy he inherits: An amazing film that put a comic book B-lister on the top of the Superhero food chain, a middling and misguided second film, wholly redeemed by a team-up movie (which made more than a billion dollars alone, by the way), owned in large part by Tony Stark. Any way you screw the bolt, the exp....