"Radcliffe began acting at age six when he appeared as a monkey in a school play. After passing up an opportunity to audition for a television production of Charles Dickens’s Oliver Twist, he caught the attention of television producer Kate Harwood, who was impressed by his “charm and simplicity,” and he was cast in the title role of David Copperfield (1999). Two years later Radcliffe appeared in the film The Tailor of Panama (2001). His big break came when he was cast in the film adaptation of J.K. Rowling’s Harry Potter and the Sorcerer’s Stone (2001). " - brittanica.com