It may be a national holiday but there’s no break from behind-the-scenes photos and videos from Joss Whedon’s The Avengers. This weekend was the photos, today it’s the videos. I didn’t watch them, but you can after the jump. For the five of you who are unfamiliar with the movie, it stars Robert Downey Jr., Chris Evans, Chris Hemsworth, Scarlett Johansson, Jeremy Renner, Mark Ruffalo, Tom Hiddleston, Cobie Smulders, and Samuel L. Jackson. The Avengers opens in 3D on May 4, 2012.