Unlike his famous father, this lad never starred in a Hollywood film, although his step-sister was in a few minor (and now forgotten) films. Hint: an early photo of this fellow, when he was about 9 or 10 years old, is often produced as being that of his dad. Know who he is?
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The background of Mexican anti-clericalism and the "atheist" general who led the Catholic counter-revolution of the 1920s 128 pp., Editorial Mazatlán, 2012.
An oral history of the World War II experiences of Gilberto Bosques (1894 – 1997), Mexico 's Consul General in Marseilles, France, who saved tens of thousands from the Nazis. 36 pp. Editorial Mazatlán, 2007 $35 MXP (click the image)
The Mex Files 
I dunno.
A hint: Antonio Banderas, Pedro Armendárez, and Yul Brenner.
Pedro Moreno, ie Cantiflas? Your hint threw me?
The three all played the famous father at one time or another (or does that make it too easy?).
Pancho Villa ie Doroteo Arango
BINGO! Agustín Villa Villascusa. It’s strange, he seems to have been a favorite child of his step-mother, Luz Corral, who remained sharp up until her death at the age of 89 in 1981, but there is very little (or no) information about Augstín that I can find anywhere. One of the Villa family though, claims this is Agustin, and who am I to doubt them?
No, it’s Benicio del Toro. Plainly.