The Star Wars films follow the archetypal journey of Luke Skywalker, who battles villains, rescues a princess, and is mentored by wise old man Obi Wan Kenobi. Having read The Hero with a Thousand Faces in college, George Lucas rediscovered it and said he "began to realize that my first draft of Star Wars was following classic motifs. . . . so I modified my next draft according to what Id been learning about [them] and made it a little bit more consistent. Lucas and Joseph Campbell became friends, and Lucas researched later film ideas in Campbells library. Tom Jung (unrelated to Carl) also designed posters for The Empire Strikes Back, The Return of the Jedi, and numerous other well-known films.