Okay, imagine you're watching a normal movie in a theater, and you can see everything happening on a screen in front of you.
Now, imagine that in a 4D film, you can not only see what's happening on the screen, but you can also feel and experience things happening around you.
For example, if the character on the screen is running through a forest, you might feel a breeze in your hair or smell the scent of trees. If there's a scene with rain, you might feel water droplets on your face.
This is possible because in a 4D film, special effects are added to enhance your experience. Some of these effects might include moving seats, wind, water, smells, and even special lighting effects.
So instead of just watching a movie, you're actually able to feel like you're a part of it and experience it in a more exciting and immersive way. It's like stepping into a whole new world!