Javier Bardem was 11 in El poderoso influjo de la luna when he played the character 'Niño entre gente curiosa (uncredited)'.
That was over 43 years ago in 1981.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 55, and has starred in 66 movies in total, 62 of those since El poderoso influjo de la luna was released.
In El poderoso influjo de la luna, I think Javier Bardem looks: