"Stop it, stop it, please, I beg you! It's a sin! It's a sin!"
- Alex's unsettling Kubrick Stare during the opening scene
of the film. - The rape/violence scene done to the Soundtrack Dissonance of "Singin' in the Rain".
- Half the soundtrack is Soundtrack Dissonance, including Timesteps by Wendy Carlos, the Suicide Scherzo (an incredibly synthesized re-working of Beethoven's 9th Symphony, which was initially composed to glorify peace and universal brotherhood!), and the theme music itself.
- Alex's face and voice as he tells his story; it's just as creepy as any of the acts of ultraviolence he commits.
- A detail of Nightmare Fuel that comes solely from the book. While skipping school, Alex goes to his favorite record shop and comes across two ten-year old girls whom are also playing hooky. So he decides to lure them back to his apartment with the promise of music and drinks. So when they get to his apartment and have to climb ten floors to his room, he encourages the tired girls to drink Scotch, which made them very drunk. And after he plays their pop music on his record player, by this time both girls were naked on his bed, he decides to bring out Beethoven's Ninth to play and a hypodermic to jab into his arm to give him energy for what he was about to do next:There it was then, the brass strings like govoreeting away from under my bed at the rest of the orchestra, and then the male human goloss coming in and telling them all to be joyful, and then the lovely blissful tune all about Joy being a glorious spark of heaven, and then I felt the old tigers leap in me and then I leapt on these two young ptitsas. This time they thought nothing fun and stopped creeching with high mirth, and had to submit to the strange and weird desires of Alexander the Large which, what with the Ninth and the hypo jab, were choodessny and zammechat and very demanding, O my brothers. But they were both very very drunken and could hardly feel very much.
- And while he's doing this, the two girls wake up to what he was doing to their bodies, and were both utterly horrified and furious. They called him a wild beast and a hateful animal, not to mention that they were bruised and pouty. All these heavily imply that he raped them hard with violence.
- And the predatory way Alex alludes to his actions. He claims in his narration that since they aren't going to school, they should at least have their education, with him as their teacher. These girls are going to have serious PTSD from this.
- Not to mention that he was fifteen years old when he committed this.
- This is thankfully downplayed in the film adaptation, where the girls are Alex's age, and the sex is consensual rather than flat out drugging and raping.
- The Ludovico treatment itself: imagine being put in a strait jacket, with your eyes held open by small hooks so you can't close them and having eye drops put in your eyes every few seconds while watching violent videos that eventually will make you sick because of a serum you were given beforehand! And you can't look away!
- Alex's torture at the hands Dim and Billy Boy (who are now police officers), where he's beaten while his head is dunked in a pig's trough filled with water. Even more since it is a case of Leave the Camera Running, with actor Malcolm McDowell genuinely having his head dunked for a full minute. He later said that he was repulsed by the very smell of it after being forced to do 27 takes of it.
- The very idea a bunch of street hoods can become police officers and have a certain degree of impunity for their actions is frightening, whether or not you feel Alex deserves their abuse.
- The final scene of the film, where Alex envisages himself having sex with a girl, surrounded by 19th century type people applauding him. And then his mocking quote: "I was cured, all right!" For some reason... it's so weird, it's disturbing. And when he says "I was cured alright" he means he was cured of his "cure".
