(SM) Related to fiction? NO, it's part of reality. (Tuj) Film? Not that I've heard of, though I know bugger all about films. According to Google there is a film of this name so the answer, strictly, is YES. (Bis) Sky involved? Could be, so YES.
(Raak) NO, not blue sky, literal or metaphoric. (Tuj) In the Bible? Almost certainly, so YES. But again, I am not fully acquainted with The Book. (RtG) Weather phenomenon? NO.
(Raak) Fire and brimstone? NO. (Tuj) In the mind? *a few audience members show signs of amusement* . NO. This objectively exists. (Bis) Heaven? *audience further engrossed*. NO
YES - BISMARCK HAS IT! The AOTC is actually The Night but that's near enough or we'll be here, er, all night. I hand you the illuminated baton - you can switch it off when the light improves.
I reckon this is a THHGTTG "Thumb" in disguise. Anyway, the next card has something that is ABSTRACT but could be argued to be MINERAL. If you look over there, you can see Nadine Dorries performing a mime of the subject in a monokini, as the Mystery Voice announces the answer to the audience.
The massed choirs of the Mothers' Union will now sing the shipping forecast to the tune of "Deutschland über alles".
[Rosie] No. Please pay attention. [Simons Mith] Not a phrase, saying, meme, idiom, slang expression or quotation, except insofar as any arrangement of words as the AOTC be a phrase, saying, etc. [Tuj] Not geographical. Some of the audience shows signs of appreciation. [Raak] That's a miss.