'Iron Man 2' Trailer Rocks. Hard.When it blasted its way through theaters in May 2008, 'Iron Man' became a welcome and unexpected blockbuster thanks to Robert Downey Jr.'s sly performance, the kickass effects and Jon Favreau's inspired direction. Now the 'Iron Man 2' trailer has landed, and it looks like the next chapter of our helmeted hero's life is going to be even more exciting.