The 1970s was a pivotal decade for film, defined by its innovative dare, plunge into grittier, more violent narratives, and eagerness to push the envelope in terms of what was socially acceptable to depict on screen.

Source: https://collider.com/1979-best-year-horror-movies/

The original essence of was lost over time as it grew grittier.

Source: https://www.cbr.com/best-dark-tv-dramas/

Whether audiences know it or not, there's a certain effect that a grittier look gives a film.

Source: https://collider.com/terrifier-grindhouse/