Big Movie/Story Analysis Project

I like working on "theory" for art.  So I'll do a bunch here about movies and stories I like.
There's probably "types" I can find.
== List of movies and stories to look at ==
Should probably mention:  world introductions/tours in Oliver and Company, and An American Tail (I don't have those listed on my page with favorite movies).
* Mary Poppins, The Sound of Music
* Bubble Buddy (Spongebob Episode), Magic Conch (Spongebob Episode)
* Mulholland Dr., Upstream Color, ALIEN, eXistenZ, The Truman Show, Inland Empire, The Assasination of Jesse James by the Coward Robert Ford, Collateral, Little Fish, Ghost in the Shell (1995), Cube, Cube Zero, Quiz Show, The Land Before Time, Star Wars original trilogy theatrical versions, Close Encounters of the Third Kind, THX 1138, Uncle Boonmee Who Can Recall His Past Lives, The Element of Crime
* Blade Runner, and Blade Runner 2049, The Matrix, Twin Peaks (the movie version of the pilot episode, released in Europe), Fire Walk With Me, Pu-239, Minority Report, Ready Player One, The Fountain, Stardust, Toy Story, War of the Worlds (2005), Hulk (2003), King Kong (2005), I'm Not There, Poltergeist (1982), The Thing, Under the Skin, Dune, Pitch Black, Riddick 
* Inception, The Dark Knight, Pan's Labyrinth, Mad Max: Fury Road, Shutter Island, Indiana Jones 1 and 3, Zardoz, 2001: A Space Odyssey, Doom, Master and Commander, Speed Racer, Return to Oz, The Lord of the Rings trilogy 
* Men In Black, I Robot, Wichita, Back to the Future, Jurassic Park, Honey I Shrunk The Kids, Home Alone, 
== What are the components of these stories, and how do they work together? ==
=== The core "seed" idea ===
Would be nice to be able to boil many down to the core "seed" of an idea, so that I know better what a good seed for a story can look like, and how to grow it from there.
Even a one-sentence summary of many stories could be cut into multiple pieces, even before adding all the extra stuff that fleshes it out.
Why is it worth watching/reading? What's the hook? What keeps you wanting to keep watching/reading?