Peter Jackson was "winging it" on the set of 'The Hobbit'.
The 54-year-old director is among the most in-demand filmmakers in Hollywood, but has revealed the iconic fantasy adventure films were made in the midst of on-set chaos.
He said: "When you're going on to a set - very complicated - you're winging it, you've got these massively complicated scenes, no storyboards and you're making it up there and then on the spot.
"We would just tell the crew to take an extended lunch for an hour or so, because I wanted to just get my head completely clear and be able to plot it through."
Peter admitted he never truly felt "on top" of the movie-making process.
Speaking in a new video from the 'Hobbit: Battle of the Five Armies' DVD, he said: "When you're in the momentum of a film, you know, day after day you're shooting, week after week you're shooting, what you're lacking is time to think.
"I don't even have time to think for half an hour if I'm on the set directing, because in that half an hour I've got 30 people coming up to me asking me questions. So I can help everyone else, but I can't help me. I don't get the time I need to think."