The best Daniel J. Travanti’s science fiction movies

An investigator seeking the cause of an airline disaster discovers the involvement of an organisation of time travellers from a future Earth irreparably polluted who seek to rejuvenate the human race from those about to die in the past. Based on a novel by John Varley.

In the future, national boundaries have been broken down and two giant super-states remain—the bleak, oppressive, and totalitarian "Hemisphere," and the sprawling and futuristic "Megaville." Megaville has an elected president, but the entire system is rife with corruption. All forms of media are encouraged in Megaville, but this freedom has aided moral decay with the distribution of pornography and violent movies. Outside Megaville lies the Hemisphere; whereas Megaville is clean and ordered, the Hemisphere is in a state of decay. Travel from the Hemisphere to Megaville is restricted with few exceptions to the powerful. An outwardly totalitarian regime governs the daily life of civilians in the Hemisphere and the people live in fear of the "CKS" (the secret police). All forms of media are illegal in the Hemisphere. CC wikipedia.org

Two different alien races are at war. Representatives of each race have landed on Earth to battle it out here, but they've taken human form and they can only spot other aliens through the use of special glasses.