Following the gag reel and extended scene earlier this week, Marvel Studios has released two featurettes for the summer blockbuster Marvel's The Avengers, debuting on Blu-ray 3D, Blu-ray, and DVD September 25th. The first featurette is a 60-second excerpt of the 90-minute documentary "Building a Cinematic Universe," featuring director Joss Whedon, Tom Hiddleston, and Mark Ruffalo talking about the incomparable Samuel L. Jackson. The second video features cast and crew members discussing Chris Evans and Mark Ruffalo's performances as Captain America and Hulk. Learn more about this superhero ensemble before you pick it up on Blu-ray 3D, Blu-ray, and DVD next month!

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Marvel's The Avengers arrives on Blu-ray 3D, Blu-ray, and DVD September 25th!