The single featured the a mix called the 7" Version, as well as a second mix of the song "Heroine".  Upon close comparison there appears to be little difference between the version on the 7" single and that on the soundtrack album other than a few seconds of blank space at the end of the track.  The song isn't even labelled as a different mix on the 7" and instead labels it as "Theme from Captive" just like the soundtrack does.  On both sources it is listed as being remixed by Steve Lillywhite.  The second mix of "Heroine" adds a longer instrumental introduction, and fades out with Sinead's vocals still prominant instead of the instrumental ending found on the soundtrack.

Both the single and the soundtrack itself are now deleted and are no longer being pressed. The mix from the soundtrack album does appear on Sinead's So Far...The Best Of album, and also appears on various Celtic music compilations.