A very beautiful flow of clips, even though some of them should frighten more than intrigue.The tempo is also part of what makes is so captivating. The clips slowly builds up and creates an alarming story. At the same time every sequence stands on its own. The lack of words gives it an almost alien view of earth and man's relationship to the planet. Together with the score by Philip Glass it sucked me in and I have rarely been so focused on every frame throughout an entire movie. It must have been quite amazing to see this in a movie theater back in the 80's with the big screen, speakers and also i guess in a time when similar creations were more scarce than now. It's by far the most visual movie I have seen and the fact that it only relies on images and music to tell a story made it bypass my rational filters and made me fully present in the moment for 86 minutes straight.