Soundtrack
On the recommendation of his friend Steven Spielberg, Lucas hired composer John Williams, who had worked with Spielberg on the film Jaws, for which he won an Academy Award. Lucas felt that the film would portray visually foreign worlds, but that the musical score would give the audience an emotional familiarity. In March 1977, Williams conducted the London Symphony Orchestra to record the Star Wars soundtrack in twelve days.
Lucas wanted a grand musical sound for Star Wars, with leitmotifs to provide distinction. Therefore, he assembled his favorite orchestral pieces for the soundtrack, until John Williams convinced him that an original score would be unique and more unified. However, a few of Williams' pieces were influenced by the tracks given to him by Lucas. The "Main Title Theme" was inspired by the theme from the 1942 film Kings Row, scored by Erich Wolfgang Korngold, and the track "Dune Sea of Tatooine" drew from the soundtrack from Bicycle Thieves, scored by Alessandro Cicognini. The American Film Institute's list of best scores lists the Star Wars soundtrack at number one.
Read more about this topic: Star Wars Episode IV: A New Hope