Belle was born as Camilla Belle Routh in Los Angeles. Her mother, Cristina, is a Brazilian-born fashion designer and her father, Jack Wesley Routh, owns a construction company and was a composer of country music. She made her professional debut in a print ad at nine months. At age five she was cast as a lead in her first film, NBC’s thriller, Trapped beneath the Earth. Belle began her career with a small role in the film production of the novel A Little Princess starring Liesel Matthews. Her first lead role was in Rip in 2000, a Disney Channel original movie. In October 2008, Belle began a relationship with Joe Jonas