[Oztrich Boy]

Well it is Bradbury you're talking about-it's not like he's a real science-fiction writer; he's the English teachers' favorite sci-fi author.

The Simpsons Episode "Lisa's Substitute,"

Martin: As your president, I would demand a science-fiction library, featuring the overlords of the genre: Asimov, Bester, Clarke!

Kid: What about Ray Bradbury?

Martin: (dismissingly) I am aware of his work.

But Bradbury's script never made it to the silver screen - perhaps because it minimizes the roles of the robot and his alien master

Not quite the case. They chose the wrong author. Shoulda chosen Robert Sheckley - Gort was a Watchbird.

[JoeProBono]

The original Gort head from "The Day the Earth Stood Still"