Jon Favreau hasn’t been too worried about releasing details surrounding the follow-up to one of the biggest blockbusters of last year - the director has been tweeting consistently from the set of Iron Man 2, and has now released the first image of Mickey Rourke in costume as baddie Whiplash (above) to go with an earlier, albeit more generic pic of Robert Downey Jr. (below). Iron Man was one of 2008’s biggest selling Blu-rays, helping to push the format last Autumn with it’s crisp action and colourful special effects. Can the sequel do likewise following it’s theatrical run next May?