Star Wars Episódio IV: Uma Nova Esperança foi o único longa-metragem de ação ao vivo de Star Wars a ser lançado sem um número de episódio ou legenda.
Por entrada da Wikipedia para Star Wars (Filme)
The film was originally released as Star Wars, without "Episode IV" or the subtitle A New Hope. The 1980 sequel, The Empire Strikes Back, was numbered "Episode V" in the opening crawl. When the original film was re-released on April 10, 1981, Episode IV: A New Hope was added above the original opening crawl. In early interviews, it was suggested the series might comprise nine or twelve films. The film was re-released theatrically in 1978, 1979, 1981, 1982, and with additional scenes and enhanced special effects in 1997.