The Artisan prop and model shop of Quantum Mechanix, QMx FX Cinema Arts, was asked to illustrate the history of space flight with models for the film. They constructed fourteen models in total. On their website, there was a picture of the X-15 model. According to the site, this plane type, built by North American, achieved several notable firsts, including being the first reusable spacecraft. Being capable of exceeding fifty miles, the plane was rated as suborbital, and the pilots were considered to be astronauts. However, the first manned flight into space occurred several months earlier on Vostok 1. The plane, also, holds the record for the fastest-recorded manned flight.