Original: Industrial Light & Magic's (ILM) Joe Johnston sketched and Colin Cantwell built models that eventually became the final X-wing fighter in Star Wars Episode IV: A New Hope.
Simplified: The X-wing was first made for the movie Star Wars: A New Hope by Industrial Light & Magic (ILM). Joe Johnston drew and Colin Cantwell made models that became the final X-wing fighter in Star Wars Episode IV: A New Hope.