'Slumdog Millionaire' child star Rubina Ali describes Hollywood megastar Nicole Kidman as "strange" in her autobiography.

The nine-year-old girl, who has turn out to be one of the youngest person to publish her life story, 'Slumgirl Dreaming: Journey to the Stars', reveals how Kidman, who was in India to discharge for a marketable in recent times, was afraid to come out of her trailer.

Rubina played a small child enthralled with Nicole's Indian princess temperament in the soft drink advertisement.

"I really liked her, but she was very quiet in addition to do speak much. I imagine she was a bit shy," Rubina wrote in her life story.

She then describes Kidman as "strange" because the actress refused to come out of her preview over the whole shoot, seemingly frightened of the sun on her facial manifestation, Daily Mail reported.