If there is one thing "Noble" movie director Stephen Bradley learned while he was making the film about the life of philantropist Christina Noble, then it is this: One person can make a difference.

"I learned about one woman whose motto is that it only takes one person to make a difference. So we are undoubtedly all able to step up to the plate," he told Breathe Cast in an interview.

"I suppose the unique thing about Christina is that she has the talent and drive to follow a vision many decades into the future and never give up on her aims no matter how hard circumstances get. That's the really tough part to achieve."

Bradley's wife Deirde O'Kane starred in the film as Christina, and it was actually because of the actress that the director got involved with "Noble" in the first place. She read Christina's books years before they started production, and she was so inspired by her story that O'Kane prodded her husband to write the screenplay and convince Christina to make a movie about her life.

According to Bradley, it took them two years to talk to Christina about her life's work and convince her that they were the right people to tell her story. One of the most important things to Christina was her relationship with the street children, and that is what they highlighted in the film.

"I think her relationship with the street-children in Vietnam and Mongolia is the most important thing to Christina and therefore was the most important thing to me. It was wonderful to work with child-actors who were actually in the care of Christina's Foundation and completely understood the story we were telling because in many respects it was their story as well," he said.