Originally it wasn't due online until next week, but the first trailer for Marvel and Disney's "Avengers: Age of Ultron" leaked a few hours ago and so the studio has brought it online. Amongst the highlights are looks at Ultron in several forms, full on Hulk vs. Iron Man action in the Hulkbuster armor, much of the Avengers team looking despondent, Thor trying to strangle Tony Stark, and lots of fighting in both a snow-bound eastern Europe and in a U.S.