There's an awful lot going on in Cloud Atlas, the time-spanning, super-ambitious movie that's out on DVD and Blu-ray today. Six time periods, tons of characters, the same actors playing different characters, all cutting back and forth. So here's a super handy chart and some featurettes from the DVD, to explain it to…

Still not convinced that you want to watch Hugh Jackman training a robot to beat another robot into spare parts in Real Steel? This featurette may go a long way towards winning you over. It basically narrates the entire movie's story, and shows both the brutality and the heart-warming cuteness of this robot film.

Do you dare look inside the ultra-dark finale of the Hogwarts saga? Three new behind-the-scenes featurettes for Harry Potter and the Deathly Hallows: Part 2 show off a ton of new scenes — including a new look for Bellatrix Lestrange.

The Lost season six DVD box set doesn't come out for another week, but the blooper-reel and snippets from the special features are out now. Watch actors try to keep track of their intrigues, plus the pilot's worryingly "cheesy" moment.