For me Plastic Planet is a great documentary! It shows the big problems caused by the big amount of plastic products in the world. It shows how less people know about the products they use in their daily life and how less they even know how much plastic they have in their homes (all this includes myself - I didn't know much about how dangerous plastic can be and was shocked and impressed). But this movie understands to "teach" us without a "schoolmasterly" manner. There are also funny moments included, that give you a good laugh. Which makes it maybe difficult for some people to see the urgent signals the story wants to tell us. But that's up to every single person itself: to start thinking about what's going on around us and in the world.