In film as in literature, each story is crafted differently to tell different stories or to tell the same story with a new twist that makes it unlike anything that has ever been seen. One of the components used to do this in both mediums is tropes. Tropes are commonly used themes or devices that appear in these stories. Whether or not you know what a trope is, everyone has seen tropes play out many times in their life. The boy falls in love with the love story of the girl next door. Enemies become lovers. A loved one must die before someone can become a superhero. There are countless others, and they are found in almost every piece of literature and film that exists. The question is, do these tropes benefit the audience or does it leave people being told the same story over and over without any real originality?
While some tropes can become overplayed and boring to watch or read, a lot of benefits come with tropes appearing in so many different works. One of them is that, if the tropes didn’t exist, it would be really hard to keep telling the same kind of story, even if they were completely different. For example, if there were no tropes, the whole Romeo and Juliet trope of lovers on opposite sides forced to hide their love wouldn’t exist. This would mean that the famous musical West Side Story and many other movies or books that follow this same plot idea would not exist, and many amazing works of art would be lost to the world.
On top of that, because the tropes exist, it’s easier to connect with certain storylines because the audience realizes it’s a type of show/book/movie they know they love because that they like that trope, or that they subconsciously pick up on the trope and keep watching or reading because it’s something familiar to them, and the brain likes familiarity. To counter this sense of familiarity, the existence of tropes in film and literature also allows artists to twist these tropes and create twists in their stories that no one would expect because they are so used to experimenting with tropes. A great example of this is Samus from the Metroid series. People had gotten so used to video game heroes being strong, muscular men who could smash their way through enemies across the screen, when it was revealed that Samus was female, it got shocked everyone. They took the trope and changed it to leave everyone amazed.
Although existing tropes in film and literature have many advantages, some negatives also accompany existing tropes. One of the biggest flaws of tropes is that if that trope is used enough, many people come to dislike them and will refuse to watch or read anything that contains those tropes. For this reason, even if a story is amazing, the idea of tropes can destroy the success of a work. The other main downside of tropes is that when certain tropes become mainstream enough, the work that involves those tropes begins to lack originality, leaving many people wanting a lot more of those works.
So while tropes in movies, TV shows, and literature can be really good for the different genres of those mediums, if they become mainstream enough, they can start to have negative impacts on works involving them. But, liking a common trope is never bad and comes down to more of a preference than anything else.