Sounds like David Lynch's Mulholland Dr. from 2001.
Mulholland Drive (stylized onscreen as Mulholland Dr.) is a 2001 American neo-noir mystery film written and directed by David Lynch and starring Naomi Watts, Laura Harring, and Justin Theroux. It tells the story of an aspiring actress named Betty Elms (Watts), newly arrived in Los Angeles, California, ...
Horror does not require supernatural elements. The Horror genre is defined by the deliberate attempt to invoke a phychological reaction of terror, fear, shock and revulsion in the audience. It is not a requirement that it has a supernatural element.
It does overlap with the Thriller genre, which is more intended to impart excitement through the use of ...
Sounds like Knight and Day from 2010 with Tom Cruise and Cameron Diaz. From IMDb:
June Havens finds her everyday life tangled with that of [Roy Miller], a secret agent who has realized he isn't supposed to survive his latest mission. As their campaign to stay alive stretches across the globe, they soon learn that all they can count on is each other.
This is Devil's Diary from 2007 that aired on Lifetime.
When two friends, Dominique and Ursula, uncover an ancient book in a graveyard one night, they discover that the book has the supernatural power to grant any evil desire written within it. In a series of escalating acts of vengeance, Ursula harms anyone who opposes her. Dominique realizes that the ...
Sounds like The Oxford Murders from 2008 with Elijah Wood and John Hurt.
At Oxford University, a professor and a grad student work together to try to stop a potential series of murders seemingly linked by mathematical symbols.
At some point, a bus driver blows up a bus full of mentally challenged children whose organs he needs to save his daughter. And a ...
Your recollection matches a section of the IMDb synopsis for House (1986). There are too many details to quote it all, but it mentions the father seeing his son behind a mirror in a painting, breaking the real mirror, entering "another dimension" where there is water, rescuing his son from monsters and emerging through a swimming pool.
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 ...
"Entertaining Mr. Sloane" (1970)
1 woman: Kath
3 men: aging father, Kemp; brother, Ed; chauffer, Sloane
thriller set in a house by a cemetery
Entertaining Mr Sloane is a 1970 British black comedy film directed by Douglas Hickox. The screenplay by Clive Exton is based on the ...
You are thinking of The Rapture (1991)
Sharon, a young Los Angeles woman, engages in a swinging, libidinous lifestyle. She comes into contact with a sect that advises her that the Rapture is imminent.
In time, she comes to accept this belief herself and becomes a born-again Christian. She begins a new, pious lifestyle, eventually marrying and having a ...
You're looking for Severed Ties from 1992.
Severed Ties is a 1992 comedy horror film directed by Damon Santostefano. It was released to video by Columbia TriStar Home Video. A regeneration experiment on a severed arm goes awry, turning the limb into a murderous, reptilian creature.
It ends exactly as you described (the mother's brain in the girlfriend's ...
I think this was an episode of Starsky and Hutch - Cover Girl
A gorgeous but terminally ill model puts a hit out on herself, but when her cancer goes into remission, she asks Hutch to stop the contract killer.
I found this by searching IMDB for the keyword Suicide By Hitman.
The Face of Fear (1971)
This was a made-for-TV movie from the 70s, based on the book 'Sally' by Howard Fast (writing under the pseudonym 'E.V. Cunningham').
Edited from this page, here's a synopsis:
Sally Dillman [played by Elizabeth Ashley] is an Idaho school teacher
who thinks she's dying of leukemia. She goes to San Fransisco for a
last fling and ...
Found it: This is the version of The House of Usher from 1989 with Oliver Reed and Donald Pleasence. From an online synopsis:
Molly McNulty accompanies her boyfriend Ryan Usher to England to visit his family estate. As they drive there, two ghostly children appear on the road, causing them to crash. With Ryan suffering from a head wound, Molly goes on ...
You're actually thinking of The Infinite Worlds of H.G. Wells, a three episode miniseries from 2001. It made a couple of appearances here (see this and this), but your question is slightly different.
In it, an aging Wells recounts his past experiences to a young journalist, all based on his stories. The one with hyperspeed and invisibility is The New ...
The first bit sounds like Gothika.
Psychiatrist Dr. Miranda Grey (Halle Berry) who works at the Woodward
Penitentiary For Women, has a car accident after trying to avoid a
girl (Kathleen Mackey) on a road during a stormy night. She rushes to
try to help the girl. The girl turns out to be a ghost and possesses
Miranda's body. ...
Sounds like The Uninvited with Emily Browning and Elizabeth Banks from 2009.
After the death of her ill mother in a fire, the young teenager Anna tries to commit suicide and is sent to a mental institution for treatment. Ten months later, Anna still cannot remember what had happened on the night her mother died. Her psychiatric Dr. Silberling, however, ...
Sounds like Killing Mr. Griffin with Amy Jo Johnson, Mario Lopez and Michelle Williams from 1997:
Mr. Griffin (Jay Thomas) is a bitter high-school teacher, who pushes his students to the limit and is hated by most of them. When he humiliates the popular student Mark Kinney (Scott Bairstow) is his class, Mark convinces his friends to play a prank on Mr. ...
Host (AKA Virtual Obsession) with Peter Gallagher and Mimi Rogers from 1998. Everything you've described (the young woman with the terminal brain illness, the married scientist freezing her head, her mind downloaded into a computer, her being able to control the city and mess with his life, wheelchair guy, lab rats etc. etc.) is all in there. Here's a scene ...
I think you're after The Killing Jar from 2010 with Michael Madsen, Danny Trejo and Amber Benson:
A stranger armed with a shotgun takes seven patrons hostage in a remote roadside diner. But as the body count increases, the desperate survivors discover that one of the hostages may be even more dangerous than their captor.
It all takes place in the diner, ...
Sounds like TV movie Cabin by the Lake from 2000.
A screenwriter does research for his new script by actually kidnapping and drowning young girls. He then places them in his "garden" of other dead girls coming back daily to check on them. One girl narrowly escapes and the other bodies are found leading to an ingenious plot to try and capture the killer.
I believe you are looking for Metro (1997)
Scott Roper is a wisecracking hostage negotiator. When his friend and
fellow police officer is assassinated by a dangerous jewel thief, he
is prepared to do just about anything to bring the killer to justice.
But as his quiet investigation progresses, he must also train an ultra
smart SWAT sniper to ...
You're describing the powerful Winter's Bone from 2010 with Jennifer Lawrence, although it's not her brother missing but rather her dad.
With an absent father and a withdrawn and depressed mother, 17 year-old Ree Dolly keeps her family together in a dirt poor rural area. She's taken aback however when the local Sheriff tells her that her father put up ...
I'm almost certain you're looking for Alone (2002)
You've described the movie well, and I remember all the details you've provided.
It's shot in first person, much of it narrated by the killer, and it's a pretty awful movie and I would have happily forgotten all about it, if it hadn't been for an extremely disturbing murderscene that involves force ...
Chiefs, a miniseries from 1983.
This series tells the story of a southern town's police chiefs and the
serial murderer who confounds them. Will Henry Lee is the first chief,
an easygoing man who works to establish the position while the
murderer begins his havoc. The second is a violent racist who stumbles
about his job as the murderer continues ...
This is the plot of the manga Boogiepop, so this must be Boogiepop and Others (since it's the only live-action adaptation I know of) from 2000. The killings a month after a pillar of light had appeared, the students disappearing and investigating it, the new drug, the urban legend, this is all in there. You can read more about the novel here, and here's the ...
I believe you're talking about Perfume: Story of a murderer. It's about a young man, with a really strong smell sense. It's actually based on a Novel.
The film tells the story of Jean-Baptiste Grenouille (Whishaw), an olfactory genius, and his homicidal quest for the perfect scent.
I watched it around 2010. So the movie maybe around ...
Sounds like Domain that came out in 2016 (in select theaters).
After a deadly virus wipes out most of humanity, the survivors are forced to wait alone in self-sustaining bunkers while the viral threat runs its course. Able to communicate through a networked video interface, the survivors wait for years and slowly become a motley family of sorts. But their ...
Could be Left in Darkness (2006)
Celia (Monica Kenna) is celebrating her 21st birthday, feeling her
birthday is cursed because her mother died giving birth to her. Her
friend takes her to a party where one of the guys puts something in
her drink and proceeds to rape her with all his friends watching and
waiting for their turn....
According to Cambridge Cinema Short it's about:
A lonely man with a dark past and the horror beneath his feet.
One reviewer noted that:
Insides by Dan Gitsham introduced a completely contrasting genre.
Incredibly atmospheric, I was unsure of what to expect as the lone
man wandered around his empty, cluttered house.
At the ...
It sounds somewhat like The Lair of the White Worm (1988), starring Amanda Donohoe, Peter Capaldi, and Hugh Grant.
IMDB page for The Lair of the White Worm
Wikipedia entry for The Lair of the White Worm