The genres, in my opinion, have a very slim boundary separating one from another. I see a lot of movies being categorized as thriller
or horror
almost interchangeably, which might seem like lack of thought or criteria. However, is there a true criterion used to differentiate between the two film genres?
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2Thrillers don't need any blood. Horror would usually be pretty lost without it. Having said, that, yes the boundaries can blur. Which was Blair Witch, thriller or horror?– TetsujinMar 4, 2016 at 18:36
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1This question would also be on-topic at EL&U.SE, though it does seem to fit better here.– WBTMar 4, 2016 at 19:23
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1However, if you think about quality Thrillers, almost all of them have blood. For example: L.A. Confidential or Silence of the Lambs.– eYeMar 4, 2016 at 19:37
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Investigative thrillers don't.– WBTMar 4, 2016 at 19:54
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What about suspense?– cdeMar 4, 2016 at 22:52
6 Answers
Your observation is correct: "thriller" and "horror" are often thinly separated in the already vague world of film taxonomy. There isn't really One True criterion for distinguishing the two.
That said, there are genres, and the thriller and horror genres can be seen, Venn diagram-style, as not completely overlapping. Check out the Wikipedia entry for thriller https://en.wikipedia.org/wiki/Thriller_(genre):
Thrillers are characterized and defined by the moods they elicit, giving viewers heightened feelings of suspense, excitement, surprise, anticipation and anxiety. Successful examples of thrillers are the films of Alfred Hitchcock.
Versus horror: https://en.wikipedia.org/wiki/Horror_film
Horror is a film genre seeking to elicit a negative emotional reaction from viewers by playing on the audience's primal fears...The macabre and the supernatural are frequent themes, and may overlap with the fantasy, supernatural fiction and thriller genres
Note that the words associated with "thriller" are uniformly positive. A thriller is "exciting", "suspenseful", etc. It tries to "surprise". The category of horror movies that fail to invoke "feelings of suspense, excitement, surprise, anticipation and anxiety" is "failures". Even the worst horror movies will try at least to shock the audience, and what is "shock" but a subcategory of "surprise"?
A successful horror film must, therefore, give us some aspects of the thriller. (And Michael Jackson was not completely off-base. :-))
Part of what's going on was first described by Mrs. Radcliffe:
Terror and Horror are so far opposite that the first expands the soul, and awakens the faculties to a high degree of life; the other contracts, freezes and nearly annihilates them.
The latter is the "negative reaction" described in Wiki, and would be the key element in distinguishing a horror film, if you wanted to really strictly classify things.
As Dean Koontz points out when he's denying being a horror writer, literary horror has a tradition rooted in nihilism, and while it's not nearly so strict for movies, it is still there. Koontz writes thrillers with horror effects. Horror requires a kind of futility in action—that contraction of the soul that says "this is beyond your capability to fix, or even survive"—seen in Poe, Lovecraft, Dunsany, etc.
And we can see this kind of concept works with movies as well. The "Resident Evil"/"Underworld"/survival-horror genre are action flicks with horror effects. "Love at First Bite" and "The Lost Boys" are comedies with horror effects. Today, horror effects are broadly used in romances ("Twilight", anyone?), superhero movies ("I, Frankenstein"), and kidfilcks ("Hotel Transylvania").
So, is there a rule of thumb that can be applied? Perhaps this: A thriller involves a (as Hitch called it) "MacGuffin": The thing everyone wants that motivates characters' actions. There is no "MacGuffin" in a horror film—even when the characters sometimes think there is, which is a common horror device—beyond the existence (biological or spiritual) of the characters.
"Psycho" isn't a thriller about embezzled money; it's a horror about a knife-wielding maniac. "Hellraiser" isn't about LeMarchand's box, but about the souls of those who touch it. "Friday the 13th" isn't about campers having sex and doing drugs, but about their ultimate demise.
I hope this has been helpful.
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1Lots of interesting thoughts! I do have some quibbles: first, Stephen King's writings, as far as I can tell, are generally considered horror but are not nihilistic. Is that a counter-example to the claim that literary horror is "rooted in nihilism"? Also, I don't think the "MacGuffin" concept is unique to or even necessary for the thriller genre. What's the MacGuffin in Rear Window? Surely the gem in Romancing the Stone is a MacGuffin, but isn't that more of an action comedy? Jan 27, 2017 at 17:31
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1Well, I'm not a King expert but I read many of his books back in his early years and I would say they have a definite strain of nihilism: Carrie is doomed, Jack Torrance is doomed, the town of Salem is doomed, the Cujo mother and son, etc. It's not like everyone has to die on page to give that sense of hopelessness. The MacGuffin in rear window is the hatbox. RTS has thriller elements despite the overall tone. I hadn't thought about it but, it MAY be that a MacGuffin by definition makes the thriller. Feb 1, 2017 at 0:45
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I think you may be conflating nihilism (the belief that life is meaningless) with fatalism. But having made that substitution, yes, I think I agree his works seem pretty fatalistic. Still not sold on the MacGuffin thing, though--I think that the rest of your post is far stronger. Feb 1, 2017 at 0:49
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1It would take more analysis that I can do in 500 characters, but on a scale of fatalist<->anti-fatalist, Stephen King's work lies between Poe's (almost fully fatalistic) and Koontz (almost fully NOT). King's characters' actions have an effect but typically a local one. On a scale of nihilism, King is less so than HPL (cosmicism) and Poe but still far more so than Koontz. Feb 5, 2017 at 21:10
a novel, movie, etc., that is very exciting : a story full of exciting action, mystery, adventure, or suspense
noun: something that causes feelings of fear, dread, and shock : something that is shocking and horrible
adjective: calculated to inspire feelings of dread or horror : bloodcurdling < a horror movie >
noun as used in definition below: a very strong feeling of fear, dread, and shock
causing great horror or fear
Thus, a horror film that exciting is also a thriller (and a horror film that's not a thriller may just be badly made or go too far causing fear/shock/dread past the point of exciting its audience), but not every thriller is a horror. For those that fall into both categories, it is up to the speaker to determine which descriptor seems more primary, according to what was more important in that person's experience of the film (or for the producer, what s/he intends to be primary in the audience's experience). When both adjectives seem equally primary, the one that is narrower or more specifically descriptive / covering a smaller set ("horror") is used.
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I used to think that "suspense" is something more relevant to high quality horror movies. Like ones Hitchock made.– eYeMar 4, 2016 at 19:29
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Suspense does seem quite relevant to high quality horror movies...which would also be thrillers, but which may be referred to using the more descriptive/narrow term (see new last sentence).– WBTMar 4, 2016 at 19:33
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@eYe I believe that Hitchcock's films are usually considered thrillers, actually. Psycho and The Birds might be considered thriller/horror hybrids, but Rear Window and Vertigo (for example) are just thrillers. Jan 27, 2017 at 17:33
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Hitchock works usually fall into: pyschological thriller, pyschological horror, and/or espionage thriller. There isn't a lot of gore--Psycho is really the only one that shows something more harrowing, where the others are more about fear of one's identity or the questioning of reality. May 11, 2018 at 23:50
I can answer this question for you.
The difference between the horror genre and the thriller genre is, as has been mentioned here already, pretty subtle, but different enough to matter.
The job of a horror film is to take the viewer through the experience of trauma.
The job of a thriller film is to take the viewer through the experience of tension and release.
These subtle but important differences are why the two genres are hard to define. Depending on how these two experiences are explored, the two can seem strikingly similar in a film narrative. That is also why there are so many horror thrillers out there.
I'm going to emend my original answer: Horror films try to invoke a fear or awe of the otherworldly or transcendental; whereas thriller films try to scare us with more mundane things.
For instance, "Repulsion" by Polanski is a horror film with no overt supernatural elements to it. But what scares us in the film is not the knowledge of a young woman having psychotic episodes, but instead the otherworldly visions in the episodes themselves, the hands coming out of walls, the person in the mirror who isn't there.
"Texas Chainsaw Massacre" is a type of horror film with no overt supernatural elements to it, but I believe it's horror because of the completely over-the-top, out-of-the-ordinary events and artifacts, such as the masks of dead flesh, the cannibalism, the bone structures; etc.
[Original answer: I would guess "horror" films would tend to contain one or more instances of supernatural elements, whereas "thriller" films would contain more or less real-world type elements exclusively.]
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1I don't really think this makes sense... there are horror films with no supernatural elements and thrillers that do...– Catija ♦Mar 10, 2016 at 0:57
A thriller is a crime story from the point-of-view of the victim or potential victim. A horror film is a thriller, but the antagonist(s) are either supernatural or extra-terrestrial or in some way diabolically monstrous beyond what you expect from a regular thriller.
Horror or Thrill?
Dictionary explains it:
one is an intense feeling of fear, shock, or disgust.
second is a sudden feeling of excitement and pleasure.