Watts, who plays struggling actress ANN DARROW in the latest version of the 1933 classic, was left impressed with Jackson's commanding but kind manner.
She says, "He is incredibly strong, but he's not intimidating or overpowering like a lot of directors. He's very welcoming; you feel safe to expose your ideas - which sometimes can be really s**t, but you want to voice them anyway in case he thinks they're good.
"The greatest thing a director can do is to empower you. Peter helps you to trust your instincts."