Jackie Chan spent his childhood attending the China Drama Academy and his training at their Peking Opera School helped send him down the path to martial arts immortality. The Peking Opera School immediately opened doors for Chan to enter the film industry and he wound up making screen debut at age eight under the name “Yuen Lau” in a 1962 film called Big and Little Wong Tin Bar. This is officially considered a lost film, as there no more complete copies of Big and Little Wong Tin Bar in existence. However, approximately fourteen minutes of the film have survived and the preceding scene just happens to feature young Jackie among the group of kids. Since it would be hard to tell which kid is Jackie, the following clip is generous enough to point him out for you.
https://www.youtube.com/watch?v=jLqLdS15vE8