Cressida Bonas is "paralysingly" shy. The 26-year-old actress - who previously dated Prince Harry for two years - admits she finds it hard to comprehend why she doesn't have more confidence in her daily life because when she acts in theatre or in a film she has an abundance of self-belief. Speaking to Miss Vogue magazine, she said: "I don't really understand it; in real life I'm often so shy - paralysingly so, but when I'm performing, it's totally different. I feel free." Cressida is set to star in upcoming film 'Tulip Fever' and the director believes this part will be a catalyst for the beauty's movie career. He said: "People will see what a fantastic actress she is ... It will be the first of many roles for her."