* ActorAllusion: [[WebVideo/BrowsHeldHigh Oancitizen]] put it best (to the tune of [[Film/{{Labyrinth}} "Magic Dance"]]):
--> ''Now, [[Music/DavidBowie Ziggy Stardust]] was an alien on Earth''\\
''And he was doomed''\\
''To fall to human vice, and leave his people blue''\\
''Director knew!''\\
''Nicholas Roeg must have known 'bout this''\\
''Banned from space, this is a case''\\
''Of casting your actor... based on his works!''\\
* PlayingWithCharacterType: David Bowie started getting film offers almost as soon as he had his commercial breakthrough via his AlterEgoActing persona of Ziggy Stardust, a flamboyant alien (or TouchedByVorlons) rock musician, MessianicArchetype, and TragicHero who succumbs to SexDrugsAndRockAndRoll, ego, and his own fans. But virtually all of the roles he was offered were Ziggy expies. He was drawn to the character of Newton because he ''wasn't'' an {{Expy}}. Yes, Newton is also an alien MessianicArchetype TragicHero...but he's TheStoic, {{Moe}} before Moe was trendy, and his succumbing to Earthlings and their vices comes not from success going to his head but because HumanityIsInfectious.
* WhatCouldHaveBeen
** Peter O'Toole was originally cast as Newton.
** The novel was primarily set in Kentucky, but the movie used New Mexico to take advantage of a tax break for British filmmakers (this was the first British-produced film shot entirely in the U.S.). Its deserts also provided a useful backdrop for the scenes set on Newton's home planet.
** Bowie originally was tapped to write the score and worked on it with Paul Buckmaster. For various reasons, it wasn't used and has never been formally released, though a backwards bass part on ''Low'''s "Subterraneans" was taken from what they worked on.