Cameron Diaz is a boy at heart

Hollywood star Cameron Diaz still feels like a "14-year-old boy" at heart even though she is rated as one of the world's most beautiful and successful actresses.

]Although her life is now completely different, the 'Knight and Day' actress, who shot to fame at the age of 21 when she starred alongside Jim Carrey in 'The Mask', insists deep down she is still the same person she used to be.