In the movie they say Peeta choking Katniss was because he was tortured and conditioned to see her as a threat, but they also made it seem like it was done through a long period of time.
However, Peeta has been programmed/conditioned to hate Katniss, to believe that it's necessary to kill her. He chokes her, and if it weren't for someone else knocking him out, he would've killed Katniss.
As she approaches him, Peeta wraps his hands around her neck and throws Katniss around the room. He begins to strangle her, nearly killing her. He is wild, unable to be stopped, at least until Boggs knocks him out with a metal tray.
In the third and final book, Mockingjay, Peeta is held captive by President Snow and used against Katniss. During his captivity, he was tortured, beaten, and hijacked using tracker jacker venom to distort his memories of Katniss until he believed she was a mutt trying to kill him.
Later, the two learn President Snow considered their actions to be an act of rebellion against the Capitol. After their last interview, in which the two continue to affect their romantic feelings for one another, Peeta comes to the realization Katniss has staged her love for him all along.
Mockingjay part 1 - hijacked Peeta chokes Katniss full scene HD
Was Peeta's father abusive?
Peeta Didn't Get Much Of A Chance To Mourn His Family
His mother was abusive, physically beating him whenever he made an error at the bakery. But supposedly his dad was nice, if distant. Peeta also had two brothers who we never learned much about.
He has betrayed her and is betraying all of District 12 by buddying up with the Careers, whom she calls the "Capitol's lapdogs." She decides that if the Careers don't kill him, she'd be more than happy to. Then, she wonders why Peeta hasn't told them about her bow and arrow skills yet.
Katniss here's this and understands that even though she may not love Peeta (then) that it's one less person who has to die. (At least that's what I have always thought.) Katniss realizes that if she pretends to be in love with Peeta people will want the capitol to let them survive.
During an interview with Good Morning Britain, Hutcherson admitted his weight loss was an effect. I did nothing to prepare physically for this role. I went on the CGI diet, computer-generated images. They just sucked my face down in post-production.
While a prisoner of the Capitol, Peeta was hijacked into believing that Katniss was not human, but in fact one of the Capitol's mutts. Conversely, Johanna Mason suggested that the Capitol's torture replaced Peeta with an "evil-mutt version" of himself. This sentiment was later echoed by Katniss.
SPOILERS!!!!! In the end of the first book peeta had his leg cut by cato but then when he hid he covered himself with mud and stuff to camouflage and it got hella infected but Katniss found him and took care of him but then his leg got torn up by mutts yada yada yada blah blah blah we already knew this.
Katniss is told to put on her Mockingjay uniform and join Gale and Finnick for some filming of the destruction aboveground. Coin wants to make it clear that the Mockingjay lives. But Katniss can't perform for the propos because she's too upset about Peeta and grows increasingly distraught.
Given that she is willing to make the ultimate sacrifice to protect Peeta, it's safe to assume that the Morphling was committed to the rebel cause. Like the other victors, she knows the power that Katniss has as a lightning rod for the rebellion, and she knows that Katniss will not help without Peeta.
Peeta, after weeks of treatment (he was presumably in the Capitol for about five to six weeks total), was still able to resist the effects. He warned Katniss Everdeen of the Capitol's plans to attack her, even though his memories about her had been hijacked. Only a short time later, his hijacking had been completed.
Why so evil, Peeta? Well, as we learn at the beginning of Mockingjay (spoilers, obv), he's been brainwashed by a method called “hijacking,” in which Tracker Jacker venom is injected to create hallucinations. In this particular case, he's been brainwashed to hate Katniss.
While the Hunger Games film never talked about it, the Catching Fire novel explained why she could only communicate through hand gestures. Katniss briefly mentioned that a previous stroke could have caused Mags' garbled speech. However, post-traumatic stress disorder could have also caused her speech incapacity.
It's only implied that they get it on via snuggling and other affectionate acts in close quarters — but if you have read the book, they really imply that they took their relationship to the next level.
In Chapter 9, as Caesar Flickerman interviews Peeta before the Games, Peeta reveals to Caesar and all of Panem that he's in love with Katniss. Peeta's revelation sets in motion the storyline of him and Katniss as ill-fated lovers that carries on throughout the Games.
Toward the end of the novel, Katniss realizes that Haymitch has been keeping information from her and using her to help the rebellion, causing her to feel extremely betrayed. On the other hand, his goals are generally good ones.
Peeta used the dyes to paint a picture of Rue after Katniss covered her with flowers when she died. He says he wants to hold them accountable for killing Rue, and Effie tells him that that kind of thinking is forbidden. Katniss then tells the team she hung a dummy of Seneca Crane.
Why does Katniss break glimmers fingers with a rock?
Admittedly, this aspect could very well be Katniss' hallucinogenic tracker jacker stings working against her, but she does have to break Glimmer's fingers to retrieve the bow the other tribute was carrying, adding to the scene's grimness.
Katniss is rendered deaf in one ear after she blows up the Careers' supplies, and she doesn't regain any hearing on her left side until afterwards when the Capitol gives her a hearing aid.
Katniss rarely sings because it reminds her of her father, but she now remembers a morbid song that her father taught her: “The Hanging Tree.” This moment in the story is significant in multiple ways.
