Star Wars is an American epic space opera franchise conceived by George Lucas. The first film in the franchise was originally released on 25 May 1977、 by 20th Century Fox、 and became a worldwide pop culture phenomenon、 spawning two immediate sequels、 released at three-year intervals. Sixteen years after the release of the trilogy s final film、 the first in a new prequel trilogy of films was released、 again released at three-year intervals、 with the final film released on 19 May 2005.Chewbacca、 nicknamed Chewie、 is a Wookiee character in the Star Wars franchise. In the series  narrative chronology、 he appears in the films Star Wars Episode III  Revenge of the Sith、 Star Wars Episode IV  A New Hope、 Star Wars Episode V  The Empire Strikes Back and Star Wars Episode VI  Return of the Jedi.