Creating realistic and natural-sounding dialogue for a movie isn't a simple job. If people spoke in movies the way they do in real life, it would be very hard to understand the movie and convey its message. At the same time, the conversations can't seem fake, as they might have the same effect. So, when writers are balancing this line, sometimes, they fail. This way, lines that make people cringe are born. And some of them quickly turn into cringy cult classics (we're looking at you "Spider-Monkey" from "Twilight").
Today, let's take a kind of cringy trip through many general or specific sayings that people find embarrassing while watching movies.
More info: Reddit