I can't sit here at work and watch an hour movie but I will say this is something I have said for a long time. I think the ancients did know more than we give them credit for and instead people talk about aliens helping build the pyramids for example, when it was all them.
They knew a lot about Mathematics, medicine, astronomy and mechanics that we don't fully understand. What happened was that knowledge is like a combination lock, when you find one number, you get closer to the next one and so on and so forth.
In the last 150 years, we just have unlocked many things we didn't know then. It doesn't make us more intelligent, just more informed.
The Mexicas in Tenochtitlan, had a city that was cleaner, more organized and larger than any city in Europe at the same time. You mean to tell me they couldn't have built pyramids of that size? LOL of course they did.