How Much of this Film is Fact?

Well, religion is a myth, so there's that.

Part I seemed the most plausible. After that, it tends to go downhill.

Precious little. I agree all religious narratives are myths, but the filmmaker's theories are for such simplistic clap-trap.

Precious little. When I watched it I thought Part 1 was interesting and raised some coincidences, but when I actually researched what it claimed properly - well, it was almost all rubbish.

I was astonished with just how much bravado it had gone out and made completely false, easily debunkable claims.

The real conspiracy will be if the writer/director made any money out of making this, they will be laughing all the way to the bank.

"I am Jack's cold sweat."

Maybe the whole point behind "question everything" is to question this very film.