Gilliam, who wrote and starred in the MONTY PYTHON TV series, refused to back down on his plans for the fairytale film's final edit.
The movie-maker only agreed to stay with the project after his obstinacy convinced HARVEY and Bob Weinstein, who financed the $80 million (GBP44.5 million) production, to trust him with the film's success.
He says, "They had their ideas, and I didn't think they were right.
"I've always been like this - pig-headed!
"I mean, if you're going to hire me, then you have to trust my instinct. If you don't trust my instinct, then I don't know why you're hiring me.
"It always ends up in these fights. I just fight to the death.
"I don't know if I'm right or wrong - I was just hired to do something.
"All I know is my mistakes are less bad than other people's."