Archival Behind-the-Scenes: “Outtakes” shows actors messing up their lines and accidents on the set. “Production Design” is a quick look at creating the sets. “Storyboarding” compares scenes with the pre-production notes. “Designing the DeLorean” and “Designing Time Travel” are closer looks at how the idea of using and decorating a DeLorean DMC-12 came about and the different concepts for making it look functional for time travel. “Hoverboard Test” is exactly what it sounds like and reveals how it was done. “Evolution of Visual Effects Shots” is a cool in-depth look at how the visual effects were done with trick photography and very early computer animation. “Photo Galleries” (HD), is mostly made up of storyboard and production stills.