What a place to fall. This movie was David Bowie's acting debut and how appropriate for Ziggy Stardust and Mr. Space Oddity. The only other flick I am aware that Bowie did was just as off-beat,I think it was called The Hunger.
The premise is good: alien from water-starved planet comes to earth for its abundance to try to get water for his parched and dying home planet. Based on Walter Tevis' intriguing novel.