Low Concept Film
A film with a generic plot, one that can easily be repeated and replicated, in other words a basic formula for a movie.

High Concept Film
A film with a highly though out plot, something that is out of the ordinary and brings something new and exciting to the playing field.

Which films paved the way for Hollywood Blockbuster films.
A lot of horror movie such as friday the 13th and Nightmare of elm street, also things such as Superman, Starwars, and back to the future

Thoughts  sequels
Sometimes sequels work and add more to the world that has previously built an example would be back to the future, it adds more to the world without becoming completely unnecessary
and for others,
some

reaaallly

just need to be left alone.


Other then batman a film that made more from merchandising

Star wars has a huge market, it has a large amount of fans same with Superman, even more so then the star wars films, Superman was long running before it got a movie adaption in the 80's

Now:

Star wars
The starwars fandom is huge, fans need merch.

Marvel:|
The MCU need I say more, fans eat up mercindise faster then my dog eats her breakfast who wouldn't want anything from the fandom its amazing.