 The original title of the movie was going to be "Tribal Rights of  Saturday Night". The films title was ultimately titled "Saturday  Night", as a direct reference to the fact that Tony (Travolta) and  his buddies inhabited 2001 Odyssey on Saturday nights. However, when  the Bee Gees submitted the soundtrack, one of the songs "Night  Fever" rang true in the fact the word night was within the title  of the film, and Travoltas character gained fever (enjoyment)  from dancing, director John Badham decided on adding fever into  the title of the picture.