On Tuesday, Marvel released an extended trailer of Avengers: Age of Ultron. Because of a leak last week, the company was prompted to release its trailer earlier than its expected date of October 28 (last night), and this extended trailer seems to be a way for Marvel to live up to its trailer promises:
The main difference between the two trailers is an extra 54 seconds or so, largely comprised of the heroes hanging out at Tony Stark's house, drinking and trying to lift Thor's hammer Mjolnir. According to legend, only someone "worthy" can lift Thor's hammer. Almost all the Avengers take a turn. Hilarity ensues.
It's at the tail end of that tomfoolery that the Avengers, to their surprise, are interrupted by an ear-piercing screech. The screech is followed by a wobbling Ultron who states: "How could you be worthy? You're all puppets … tangled in strings."
(Marvel)
That opening scene changes the tone from the original trailer a bit — the Avengers seem to be celebrating a victory (over what, we don't know) and are then shocked at Ultron's appearance.
It also drives home the idea that Tony Stark (Robert Downey Jr.) is responsible for creating Ultron, possibly without the other heroes' knowledge — most of the Avengers look surprised and befuddled, while Stark looks like he knows exactly what's going on.
The rest of the trailer then aligns with the one released last week.
Avengers: Age of Ultron will be released on May 1, 2015