Once upon a time, a long time ago, people didn't know what science fiction was. They only knew about real life things like people, animals, and nature. But as they began to learn more about the world around them, they started imagining things that could happen if they had certain technologies or if the world was a little bit different.
Soon, they started writing stories and making movies about these imagined worlds and technologies. These stories and movies were called science fiction, which meant that they imagined things that could happen in the future or in a different world.
The first science fiction movie was made in 1902 and it was called "A Trip to the Moon." It was about some scientists who took a rocket ship to the moon and had some adventures there. People loved it and wanted more stories like it.
So, more and more science fiction movies were made, and they became very popular. Some of the most famous science fiction movies are "Star Wars," "Jurassic Park," and "The Matrix." In these movies, they imagined things like light swords, dinosaurs being brought back to life, and people controlling the world with computers.
People loved watching science fiction movies because they were exciting and they allowed them to imagine what might happen in the future or in different worlds. Sometimes they also helped people to think about important things like how technology can change our lives and what would happen if we met aliens.
And that's how science fiction movies came to be!