" Eric told Pyro that he still had admiration for his former ally the Professor, who "did more for mutants han you""ll ever know.Ripley teamed up with the convicts of the monastic penal colony, although accused of bringing the Alien there by angry inmate Robert Morse (Danny Webb) ("She""s the one that brought the f--ker"), to organize and combat the Alien in the installation""s 600 air ventilation ducts, and trap it by fire (by igniting highly-flammable toxic waste, quinitricetyline, put into the facility""s ventilation system).]:the United Nations Building (New York City) (a hidden camera filmed the hero""s entrance up the steps into the building, but the UN lobby was a recreation)Grand Central Station (New York City)Mount Rushmore (in South Dakota) (there are shots of the exterior of the park""s monument, but the actors crawled next to a reproduction of the Presidential faces)Exciting set-pieces include the seduction scenes with steamy double entendres during a cross-country train ride, the seven-minute bi-plane crop-duster attack scene near a Midwest cornfield, the auction scene, and the dangling finale at Mount Rushmore, heralded in another film poster:From the killer plane in the cornfield to the cliff-hanger on George Washington""s nose, it""s suspense in every direction!The director""s familiar MacGuffin in this film (the device or plot element that catches the viewer""s attention or drives he logic of the plot) is the secret information sought by the spies, and secondarily, the mistaken identity at the film""s start...Look, we""ve got a bunch of hobgoblin radicals called the Ecumenical Liberation Army who go around taking home movies of themselves robbing banks.