Optimism behind my successful career: Julia Roberts

London: `Pretty Woman` star Julia Roberts says she has had a successful career because she has always remained optimistic. The 44-year-old Academy Award winning actress has three children with husband Danny Moder and although she feels incredibly blessed with her personal and professional good fortune, she doesn`t credit it all to simple luck, reported a website. "I think I`m more in control of my life, my confidence and drive to do the work that I love and to believe that I can do it. I don`t think it`s magic dust that made Danny appear or director Mike Nichols. I think that I`m a deeply optimistic person. I`m a hopeful person. I mean that`s sort of the cornerstone of fairytales," she said. Roberts also credits `Pretty Woman` director Garry Marshall and `The Pelican Brief` filmmaker Alan Pakula with steering her career. "In essence I owe my career to Garry Marshall. There was no known reason for him to hire me for `Pretty Woman`. And even he was puzzled by his decision. But I owe the forward motion of my career to Alan Pakula. It wasn`t until I met him and he had written the screenplay for `Pelican Brief`. We had a really interesting conversation about it and it re-ignited my enthusiasm for acting," she added. PTI