Movies about hidden/secret societies? via /r/movies

I’m pretty sure it must have a name, i’m looking for more movies where there is a group hidden in society, like:

-The Harry Potter saga, where wizards and witches and all kinds of magic-folk live in the same world as ours, but hidden from our society.

-The Twilight Series, same as above.

I remember lots more but these are the only ones i can think about right now, i’m sure i could’ve worded it better but i hope you guys understood what i’m looking for. Sorry about my english, it’s my 3rd language.