In what decade did the genre of horror films start gaining more mainstream popularity?

The 1970s marked a significant shift in the horror film genre, leading to its rise in mainstream popularity. This decade produced a number of landmark films that not only influenced the genre but also attracted wide audiences and critical acclaim.

Key releases during this period, such as "The Exorcist" (1973), "Halloween" (1978), and "The Omen" (1976), showcased a blend of psychological horror and supernatural elements, driving the genre into the spotlight. "The Exorcist," in particular, was groundbreaking, becoming one of the highest-grossing films of its time and earning multiple Academy Award nominations.

The 1970s also saw an emergence of horror that addressed social issues and cultural anxieties, resonating with audiences in a profound way. This blend of thematic depth, innovative filmmaking, and commercial success contributed to horror films becoming a staple in cinema, thereby solidifying their popularity in the mainstream.

The decades prior, while containing notable horror films, did not achieve the same level of cultural impact and widespread audience engagement that characterized the 1970s.