 The original theme song "The Night They Returned" has been composed  and performed by famous metal band Kataklysm. After the release of  the song, Kataklysms record label Nuclear Blast could not deliver  an agreement allowing the film producer to use the track, forcing Sv  Bell to use some other music as the theme song. The piece can be  heard in Kataklysms 2004 release "Serenity in Fire".