The picture-in-picture commentary is a ridiculously entertaining and informative addition, highlighting not only Snyder's dynamic, easy-going personality but everything and anything audiences may have wanted to know about the film's production. With a second, smaller screen in the bottom-left corner matched shot-for-shot with the theatrical release, viewers can see the green-screen, blue-screen, warts-and-all reference shots compared against their fully-produced end products. The Film-School-101, special-effects master class value is both remarkable and completely accessible as Snyder walks us through the arduous, painstaking process of creating an effects-heavy film with an impressive charisma and a well-delivered lesson plan. And the dual-picture accompaniment is a welcome, educational visual aid.