So, Star Wars documentaries are like movies, but instead of telling a story that is made up, they tell a story about how the Star Wars movies were made.
Imagine if you had a toy house that you really liked to play with. Now imagine someone made a video about how that toy house was made, with photos of the people who designed it and the machines they used to make it. That's kind of what a documentary is all about - showing you the behind-the-scenes stuff that goes into making something you love.
In Star Wars documentaries, you can learn all sorts of interesting stuff about how the movies were made. You might see how the special effects were created, or learn more about the actors who played your favorite characters. You could even learn about the complex process of making the costumes that the characters wear.
So, basically, a Star Wars documentary is a fun way to learn more about your favorite movies and get a behind-the-scenes peek at how they were made. It's like getting a really cool backstage pass to the Star Wars universe!