Okay, so the Qatsi Trilogy is a series of three movies that are really artsy-fartsy (that means they're supposed to be really artistic and like, deep). The movies don't have people talking and telling a story like most movies you're used to, instead they use images and music to make you feel and think about things.
The first movie is called Koyaanisqatsi, and it's all about how humans are changing the natural world around us. You'll see a lot of really cool and sometimes crazy footage of cities and landscapes sped up or slowed down, and all of it set to beautiful music.
The second movie is called Powaqqatsi, and it's about how people in different parts of the world live and work. You'll see footage of people doing things like farming and building things, but set to really cool music that makes you feel like you're in a dream.
The third movie is called Naqoyqatsi, and it's all about how technology and the modern world can change us. You'll see a lot of really trippy images of things like computers and satellites, all set to cool music.
Overall, the Qatsi Trilogy is really fascinating and different from most movies you're used to, so if you like art and music and feeling things, you might really like it!