Okay, so you know how when you watch TV or movies, you see things happening on the screen? Well, there are people who make that happen! They are called the film crew.
The film crew is made up of lots of different people who all work together to create a movie or TV show. There's someone in charge of the camera, someone who helps with the lights, someone who makes sure the sound is good, and lots of other people too.
They all have different jobs, but they all work together to make sure everything looks and sounds just right. They might film scenes in different places, like a movie set or a real city or even outside in nature.
It's kind of like when you and your friends play dress-up or make a pretend movie at home, but the film crew gets paid to do it and they are really good at their jobs!