sigma cinema

Otherwise known as "Literally Me" films.
As The Kino Corner says:
"It's a loose collection of movies that typically star men on the fringes of society. They're usually regular guys who just snap, but sometimes they are complete psychopaths."

"Sigma cinema" term comes from the fact that every character in those types of films is a self-reliant man taking matters into their own hands and isn't influenced by others' opinions. They believe in their actions and values, which in the case of these films, can often cause disastrous consequences. In a nutshell, sigma cinema means films unintentionally targeting the "sigma male" audience.

Examples:
Patrick Bateman from "American Psycho"
William Foster from "Falling Down"
Tyler Durden from "Fight Club"

Josh: So I watched American Psycho last night. Bateman is literally me! Like, for real!
Mike: ...Are you sure about that?

Rob: I've been wheezing at the term "sigma cinema" for the past hour.
Mike: Me too.