I study medicine, so I figured this documentary might be a good tool to enhance what I have already learned by watching it visually. I have to say that it was not as good as I expected.For common people who have no knowledge about the human body, this documentary may be quite impressive. However, it basically repeated what I have already learned in medical school. It is certainly very basic. Some of the scenes were repeated under different subjects. Some of the scenes were quite impressive if they were shot inside of real human bodies. Some of the scenes might be confusing to the common people. For example, it showed the inside of a fallopian tube without showing its actual location in a female body. For people who have never heard of that phrase before, they might get lost easily.So if you just got in a medical school, this documentary is good for you to get a general idea of the human body. If you already finished your first two years of medical education, this one would be too easy for you.One last thing, the total length should be 95 minutes, not 120 minutes as listed on here.