 Some scenes of the ruined city of Hue were shot at a dockyard on the  Isle of Dogs, London, that was scheduled for demolition. The ruins  of Hue in the sniper and final nighttime scenes were shot at the  Beckton Gasworks in Londons East End, which was also slated for  demolition. In some shots there is a rock in the background that  looks very much like the monolith from Stanley Kubrick (qv)s  _2001: A Space Odyssey (1968)_ (qv). Kubrick said it wasnt  intentional, but only noticed while watching the rushes. Beckton Gas  Works was used a year before for the movie_Biggles(1986)_ (qv).