Which significant director is famously associated with the horror genre?

John Carpenter is renowned for his extensive contributions to the horror genre, particularly during the late 1970s and 1980s. His film "Halloween" is often credited with popularizing the slasher subgenre and has had a lasting impact on cinema, establishing many conventions that are still used in horror films today. Carpenter’s ability to create suspense and tension through innovative cinematography, sound design, and score—most notably his own iconic synth music—has solidified his place as a master of horror. His work influenced a generation of filmmakers and continues to resonate with audiences, making him a significant figure in the history of horror cinema.

The other directors mentioned are well-respected and have made important contributions to film, but their association with the horror genre isn't as pronounced as Carpenter's. Steven Spielberg is known for his blockbuster hits, many of which are adventure or science fiction, while Alfred Hitchcock, though often considered the "Master of Suspense," is not strictly limited to horror, having explored various genres. Martin Scorsese is celebrated for his work in crime films and dramas, further distinguishing his style and thematic focus from the realms of horror that Carpenter has distinctly defined.