If I Cant Have You / Live-Action Films

• It's never explicitly stated, but this seems to be how The Joker feels at the climax of Batman (1989). Once it finally becomes clear to him that Vicki Vale will never love him, he just tries to kill her along with Batman. (Being a psychopath, it's likely he would have eventually killed her anyway once he got bored with her, as he did with Alicia.)
• At the end of The Count of Monte Cristo, the villain attempts to kill Mercedes, although it's less about love and more about denying her to Edmond, who has ruined his life in vengeance for sending him to the Chateau d'If in order to have her for himself.
  Edmond: You've only got one shot. And it'll take more than that to stop me.
  Fernand: Well, then, I'd best place it where it will do the most damage.
  [turns the gun on Mercedes and fires]
• Lampshaded in Cursed. "If I can't have him... Well, you know how it goes."
• Dark Shadows: The entire reason Angelique cursed Barnabas and buried him alive is because he rejected her advances. When he eventually escapes his coffin, she tells him to either return her love this time, or she'll destroy his family (which she's been doing for the last two hundred years anyway).
• Mitch from Enough when he attacks Slim at her new house, angry that she is regaining feelings for her ex-boyfriend Joe. He even, at one point, says "If I can't have you, no one can!"
• In Faithful Heart, Petit Paul plans to kill both Jean and Marie if he sees them together.
• A non-romantic variant happens in Ginger Snaps 2: Unleashed: While hiding out at Ghost's grandmother's house, Brigitte has a bad reaction to the monkshood she had been using to keep her werewolf transformation at bay, and Tyler wants to take her to a hospital. Ghost, who had grown attached to Brigitte, claims that Tyler raped her, which results in Brigitte leaving Tyler to be mauled by the werewolf that has been pursuing her the whole movie. When Brigitte later sees proof that Ghost has been lying to her about what happened to her grandmother, she realizes the truth and angrily confronts her, which leads to this.
  Brigitte: What happened to Grandma?
  Ghost: She fell asleep with a cigarette.
  Brigitte: Grandma didn't smoke. (grabs Ghost and pushes her against the wall) You burned Barbara! Did you lie about Tyler, too?
  Ghost: (refusing to look her in the eye) He pushed and he pulled, and he laughed when she cried…
  Brigitte: What did he really do?!
  Ghost: He took advantage of her heart!
  Brigitte: …He didn't do it, did he?
  (Beat as Ghost still refuses to look at her or even answer. Brigitte angrily punches a hole in the wall next to her head, scaring her)
  Ghost: HE WAS GONNA TAKE YOU AWAY FROM ME!
• Hocus Pocus: Winifred was this to her dead ex-boyfriend, Billy. She found out that he cheated on her with Sarah and not only killed him, but also sewed his mouth shut. Over three centuries later, Billy tells her exactly what he thinks of her.
• A non-romantic example from Hot Fuzz: Leslie Tiller is killed because she was going to move away from Sandford, and the NWA didn't want her horticultural experience to be used for any of Sandford's competition for 'Village of the Year'.
• House of Flying Daggers: Leo says to Mei "You're the love of my life. You don't have to love me, but you can never go with him." This is after he has stabbed her in the chest with a dagger.
• The ending of The House of Yes invokes this even though the words are never spoken.
• Jason's Lyric: Non-romantic example. The younger brother, Joshua, is used to always rely on his older brother, Jason, in almost everything (including in avoiding the consequences of his wrongdoings) that he grows jealous when finding out Jason would move in with his girlfriend, Lyric. Disgruntled, Joshua attempts to kill Lyric (despite his real target is her older brother, Alonzo) in order to keep Jason from leaving him. Nevertheless, his mission failed as Jason finally chooses Lyric over him.
• Jules and Jim: After finding out Jim is going to marry Gilberte, Catherine lures Jim into her car, and then drives both of them off a bridge to their deaths, but not before cruelly telling Jules to "watch very carefully."
• Labyrinth makes a song out of this with "Within You", the lyrics of which can be read as "If I can't have you, why the hell do I exist?"
• The Bishop of Aquila from Ladyhawke, after his curse on two lovers is broken by an eclipse, aims his staff like a spear at Isabeau, the female half of the couple whom he had wanted for himself, declaring that if he cannot have her: "...then no man shall!" Etienne stops him by throwing his sword, which goes right through the priest and kills him.
  • Also, the significance of them being transformed into a wolf and a hawk. Both animals mate for life.
  • The curse itself is specifically mentioned to have been a case of this.
• The motive for trying to kill Laura.
• Lights of New York: Molly states this as her reason for killing Hawk: "When he told me he was through with me, I made up my mind he was through with all women." It's heavily implied she wasn't the real murderer, though.
• Magadheera: The last act of the main villain, Ranadev Billa, upon being mortally wounded by the warrior Kala Bhairava, is to hurl his dagger through Princess Devi and kill her.
• Clinch of A Million Ways to Die in the West is shown he's perfectly willing to murder people when he learns his wife Anna kissed another man (Albert) as well as attempt to murder her after she rejects and humiliates him.
• In Misery, Annie tries to keep Paul from leaving her but knows he'll want to leave her when his legs get better and then says that she has a gun and she might put bullets in it.
• Bobby (played by Fred Savage) in the TV movie No One Would Tell does this to his girlfriend Stacy.
• Once Upon a Time in Mexico: a series of flashbacks fills in the history between the events of the film's present day and Desperado, through most of which El Mariachi and Carolina are pursued by Carolina's psychotic ex, Mexican Army General Marquez. When he finally tracks her down, Marquez gives her one last chance to come with him. When she refuses, he kills her and El Mariachi's young daughter.
• In Red Eye the final confrontation gave a bit of this vibe.
• Repo Men (2010): The relationship with Jake and Remy was rather brotherly, going back to their childhood with Jake as a bully. As adults working together in repossession, Jake gradually became rather attached to Remy, and the repo job was something that bonded them together. But in doing this job Remy and his wife Carol had a rocky marriage, so things weren't looking up. Remy was thinking about quitting repo. Jake got desperate and sabotaged a defibrillator, resulting in Remy getting an auto heart from the shock, and his wife leaving him. Eventually becoming enemies Jake was determined to keep Remy by him by some means, which led to Jake putting him in a brain dead (dream state) coma and continuing to do repossession jobs to keep Remy alive and happy; so not only did Jake remove Remy from his wife, it is highly likely that he killed Remy's love interest, Beth.
• In the Morgan Fairchild film The Seduction, a male loner stalking a celebrity news anchor inserts such a message into her teleprompter script, causing her to have a Heroic BSoD on the air.
• Alec Baldwin's character, Teacher, from The Juror (1996). At first Annie Laird's Stalker with a Crush, he changes to this trope after she "betrays" him and tries to get him killed. He then becomes obsessed with killing her.
• Used as a plot point in Tenet. Andrei Sator gives this trope word-for-word to his estranged wife Kat. Turns out that's why he's willing to go along with a plan to destroy the world—he's dying of radiation-induced cancer and wants to take the world with him.
• In ¡Three Amigos!:
  El Guapo: Jefe, you do not understand women. You cannot force open the petals of a flower. When the flower is ready, it opens itself up to you.
  Jefe: So when do you think Carmen will open up her flower to you?
  El Guapo: Tonight, or I will kill her!
• In Titanic (1997) after Rose jumps out of the last lifeboat onto the ship to be with Jack, Cal is shown looking extremely jealous as they embrace, so much so that he takes a gun and shoots at them, intending to kill them both.
• Near the end of Tucker & Dale vs. Evil, Chad puts Allison on a Conveyor Belt of Doom when he realizes she and Dale are falling in love.
• In Tuff Turf, Nick declares that he'd rather kill Frankie than have her end up with Morgan.
• In Written on the Wind, Marylee threatens Mitch that if he doesn't marry her, she'll testify that he murdered Kyle. He refuses, but she has a change of heart and tells the truth which is that Kyle accidentally killed himself.
• The Blue Iguana: While Vince and the boy are driving into Diablo, they pass a body hanging from a tree and another draped over a fence. Vince later learns that those are the bodies of men who dated Dakota after she dumped the crime lord Reno, who murdered them so that no one could have the woman who rejected him.
• In Seed of Chucky: Chucky would rather kill his wife Tiffany and their child, Glen, rather than have them leave him. Chucky's final words before killing Tiffany are "nobody leaves me!" Surprisingly grounded considering its a film about voodoo empowered killer dolls stalking a real-life celebrity with their gender confused doll offspring.

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