The Avengers Blu-Ray that comes out later this month will have a ton of extras, including twenty minutes of deleted scenes. A lot of these extras have been leaking online thanks to the disc already being pirated, but now one scene has been officially released. That means unlike that blooper reel and other extras clips, this one won’t be pulled down before you can view it.
Yahoo has posted the alternate opening scene, which is completely different than what we original got. And I think the original opening is much better than this one, as this version is much darker and sets the wrong tone for the movie. The original opening the movie released with was much better.