Okay kiddo, so you know how movies and TV shows look really smooth and fast? That's because they show a lot of pictures (we call them frames) really quickly. But did you know that not all frames are shown at the same speed?
Sometimes, movies are made with a different number of frames each second than TV shows. So when we want to show a movie on TV, we have to change the way the frames are shown so that they fit with the TV's frame rate.
This is where three-two pull down comes in. It's a special way of showing the movie's frames on TV. It goes like this: for every three movie frames, we show the first one on the TV for a little longer than usual. Then, for the next two frames, we show them on the TV for a shorter time than usual.
This makes sure that the movie frames fit with the TV frames, and it helps to keep the picture looking smooth and not jerky.
So there you have it, kiddo! Three-two pull down is like a special way of showing movies on TV so they look good and smooth.