The blockbuster hit of the summer from Marvel and fan favorite director Joss Whedon, ‘The Avengers’, is now available on Blu-ray and DVD this week. In addition to being able to see what’s arguably the best superhero movie ever made whenever you want in the comfort of your own living room, you can also see the boatload of bonus material available exclusively on the home release.

However, if you haven’t gotten around to stopping by your local store, online or in real life, you’re in luck because some sites have been showcasing some of the more interesting bits of special features. Thanks to Comic Book Movie and the Avengers Initiative: Marvel Second Screen Experience app, we get a look at some concept art for Thanos, the big purple surprise at the end of ‘The Avengers’. You can check out the awesome pictures below:

The Mad Titan is supposed to play a larger part in the Marvel Cinematic Universe in Phase Two as he’s been speculated to be the main villain for James Gunn’s ‘Guardians of the Galaxy’ and Joss Whedon’s ‘The Avengers 2’. But before he makes another appearance on the silver screen, be sure to check out Avengers Spotlight profile on him to find out more about one of the most feared beings in the whole Marvel Universe.