One minor correction to the article: "Numenor, heretofore unmentioned in film adaptations" - Numenor is mentioned at least twice in the LotR trilogy, and one is in the theatrical even. The Eowyn stew scene and Elrond's "the blood of Numenor all but spent." There might be more I'm forgetting
Is mentioned by Elrond
The blood of Numenor is all but spent.
...by Eowyn:
A descendant of Numenor, blessed with long life
...and Faramir...
This is the city of the Men of Numenor.
...and obliquely by Gandalf:
The old wisdom borne out of the west.
And obviously they could connect it visually: there's another white tree, the armour could be similar to the one used in the prologue. Narsil is obviously there somewhere, as are the Palantiri, the Ring of Barahir, etcetra.
(This post was edited by Chen G. on Jan 13 2021, 2:29pm)
