this documentary ( or i should say mockumentary ) be the perfect example of how ridiculous can the people be and when they have full enthusiasm on something like that . honestly and i hate cryptozoology . it be unscience and it just destroy it . however and something positive in this be the visual effect ( dragon be beautiful ) and but some of the information in this mockumentary be totally fake and and that be really disappointing because it be come from scientist and so that be the reason why it deserve a negative and not a 0. an example of false information would be the hydrogen idea represent it be true that and accord to chemystry and the hydrogen be produce in the stomach but it be impossible to be produce in that proportion and so in that case and you need a good explanation of what really happen in a dragon stomach . there be a lot of substance whit hydrogen in the nature but not the necessary to aloud an animal like that to fly and and the hydrogen do not appear from nothing and so it be impossible . anyway and there be actually something bad and the idea of the platinum represent this element be more difficult to find than gold and and i can not explain myself how dragon survive depend of that . it be ridiculous and they present dragon like creature with low chance of conquer the planet earth and but off course at least that explain why they get extincted . probably cryptologist call themselves scientist and but they be not . people like them say lie like in this mockumentary and and what be bad and some people buy them . but i do not think that a person who care about science would believe in dragon after watch this . those fake scientist waste their time .