The highlight of this summer's "X-Men: Days of Future Past" was undoubtedly the sequence involving Quicksilver (played by "American Horror Story" star Evan Peters) breaking Magneto (Michael Fassbender) out of a maximum-security prison. It was playful and light and totally comic book-y, in a way that the rest of the movie was decidedly not. The scene also felt like a true feat of movie magic, something that couldn't be accomplished without a whole bunch of talented artists and technicians working at the absolute top of their game. And thanks to a new behind-the-scenes featurette (likely included in the film's forthcoming home video release), you get a peek at how that magic was accomplished.

The clip (courtesy of Comic Book Movie), shows directed Bryan Singer consulting with a number of stunt performers and visual effects craftspeople. At one point he admits that the stunt, which features a truly elaborate mechanical rig that would spin a stunt performer around a circular room, could have spun "wildly out of control." (Thankfully it did not.) Also of note is the fact that you can see the Phantom cameras that film sequences in a speed of more than 1000 frames per second. Basically – they're like the Quicksilver of cameras.

And, like the very best behind-the-scenes documentaries, knowing how the sequence was put together doesn't lessen its impact. It's still as super cool as it was when "X-Men: Days of Future Past" was released last May.