http://www.reddit.com/r/videos/comments/1v1ln2/engineer_the_pyramids_of_egypt_were_built_using/
I was blown away by this video. The evidence seemed pretty legit, but I'm no expert. What say you /r/askhistorians?
edit: I guess I should summarize the video.
It argues that the Egyptian Pyramids were built using canals and floating blocks using papyrus, as opposed to the traditional view of rolling blocks up earthen ramps.
You might do better if you put your question in your headline. Just a question about an unknown "video" won't necessarily attract the attention of the Egyptian historians you want. You might get more interest from relevant people if you ask something like "Were the Egyptian pyramids built like this video says?"
In the meantime, you may be interested in the 'What techniques did the Egyptians use to build the pyramids?' section of the Popular Questions pages.