ELI5: Explain Like I'm 5

Multiplex (movie theater)

Imagine you have a big box with different rooms inside. Each room has a big TV screen and comfortable chairs for people to sit and watch movies. Now, imagine that you have many different movies that people want to see, all at the same time. Instead of putting one movie in each room, you can use a special system called a multiplex to play many different movies in the same room at the same time.

The multiplex is like a really cool movie planner. It can divide the big TV screen into smaller ones and show different movies on each part of the screen so that everyone in the room can watch the movie they want to see. The sound from each movie is played through speakers that are specific to that section of the screen.

This means that lots of people can come to the same place and watch different movies at the same time. That's why movie theaters have become so popular today. People can go to the movie theater and pick a movie that they want to watch and then sit down and enjoy the show with others!