During the revolt, Carlo (Kim Coates) is attacked by several Psychlo gunships on the dome's roof. He then uses a Carl Gustav recoilless rifle to destroy one of them. Strangely, the missile he fires is heat seeking, evidenced by it missing the target and arcing back around to strike the gunship from behind. Carl Gustavs are not designed to fire heat seeking missiles, as they lack the tracking systems necessary to do so, since the weapon is an anti-tank rifle in real life.
John Travolta made the film with Franchise Pictures. A few years after the film, it was revealed in a court case that Franchise had fraudulently overstated the budget of Battlefield Earth by $21 million to scam investors. After losing the case, Franchise filed for bankruptcy, and Travolta fired his manager, who set up the deal with Franchise in the first place.