Films With Fascinating Exposition?

I'm not sure if I worded this correctly but could you all recommend some films to me with particularly fascinating and lengthy amounts of exposition? That is to say, films that explain what's going on in a very intriguing way (typically from a very intelligent and well-spoken character, like a professor lecturing their students). Some examples:

Event Horizon (my favorite scene where Dr. Weir played by the great Sam Neil explains the Gravity Drive in laymen terms):

Copycat (Dr. Hudson giving a lecture on the patterns of serial killers):

Jurassic Park (so many amazing monologues and dialogues there but a sample of Dr. Malcolm):

The opening of David Lynch's Dune with Princess Irulan delivering the exposition (I love the entire film as it's very heavy on exposition given that it's trying to cram so much material from the books in a short runtime):

Star Trek: TNG is the motherlode for me when it comes to the most intriguing deliveries of exposition.

I'm not sure I explained what I'm after very well but if anyone sort of understands what I'm after, I'd appreciate any recommendations! I really love these types of scenes.

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3 mo
Sin City is another one I love that way.
https://youtu.be/2QhtHzGDlE4
Films With Fascinating Exposition?
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