Is this genuine footage?

I was wondering the same part... it's classified as a documentary, and if that's the case, if it's all real, then it's a highly impressive piece of work.

__
"I'm vilifying you for God's sake - pay attention!"

[deleted]

I think it's acted. Just watch other films by Forman like "Horí, má panenko" or "Taking Off", he makespeople act very naturally.