Watch this: 21-minute ‘Oblivion’ featurette is a sweeping look at a post-apocalyptic Earth

We’re just days away from the Friday premiere of Oblivion, Tron: Legacy director Joseph Kosinski’s new big-budget sci-fi feature starring Tom Cruise, but if you want an exhaustive look at what moviegoers are in for, watch the 21-minute behind-the-scenes featurette below. It’s impressive to see how the VFX crew turned a barren Icelandic landscape into the ruins of modern civilization, or what went into the scale model of the movie’s iconic “bubble jet.” We’re hoping Oblivion’s story lives up to the lavish imagery, but as io9 points out, early reviews have so far been less than generous.