Wait a minute... this came out AFTER "Star Wars"?
Okay, it's playing on a free streaming channel that will put anything on, and it looks absolutely pre-Star Wars. It has all the cheap matte effects and cheesy futuristic production design that Star Wars made obsolete.
At first I assumed it was from around 1972, but then, it became clear that the writers were trying very hard to rip off SW, even if they were undermined by the special effects department and the set designers.