"He and Audrey developed a really good relationship, and he brought out a facet of her personality I’ve never seen before. At times, they acted like two young kids. I would say Tony seemed like a brother to Audrey and watched over her. If he saw her sitting by herself on the set, maybe looking a little sad, he would jump in, shaking her chair until he had her laughing, or getting her a cup of tea, telling her a joke - anything that would perk up her spirits." - Bob Willhougby on Anthony Perkins and Audrey Hepburn behind the scenes of Green Mansions.