The Hispanic prison gang "La Onda," depicted in this film, is a fictional creation of Jimmy Santiago Baca and Taylor Hackford, but the gang is based on the real-life Mexican Mafia prison gang. The other two gangs depicted were the "BGA" (Black Guerrilla Army) and the "AV'ers" (Aryan Vanguard). They represented the real life gangs the Black Guerrilla Family and the Aryan Brotherhood, respectively.
Danny Trejo, the actor who plays Geronimo of the La Onda council, once actually did time in San Quentin. During the final gathering of the council, Miklo stated that he was headed back to Texas via interstate compact - Trejo's cousin (film director Robert Rodriguez) is from San Antonio.
At the time of the film's release, there were two soundtracks planned. One consisted of only prerecorded music featured in the film released under Disney's label, Hollywood Records. The second one was to have featured Academy Award winner Bill Conti's aggressive Latin score and was to be released by Varese Sarabande Records. While the first album, was released under the films' new title, Bound By Honor, Conti's album was immediately canceled during its'production run under the film's original title, Blood In Blood Out. The film's abrupt title change may have been one of the reasons this album was canceled. This run of the CD actually does exist, but not made available to the general public despite the fact that a more than a few copies of it have leaked out onto the market, mainly for promotional services within the film industry. This CD has the unique distinction of being one of the rarest soundtracks in existence and rarely available for sale. A listing stating "Score album on Varese Sarabande" next to the record company's logo is posted during the film's End Credits and on the back of the film's VHS, Laserdisc and DVD releases.
Originally titled "Blood In Blood Out", which is the motto of La Onda, the prison gang in the film. Before the film's release in Spring of 1993, the title and all posters were changed because Disney which produced the film under their Hollywood Pictures banner, felt that it would promote or influence violence especially among the L.A. gangs where the film actually takes place around East Los Angeles. Another possible reason was because of the aftermath of the L.A. riots during this period of time which the studio felt the film's title was too negative. Bound by Honor was chosen and actually portrays the film's message a little more clearly.