Warning--this is from memory from ten years ago. Please feel free to correct me.
I stayed in an albergue of sorts, called El Molino, outside of Hornillos del Camino. The owners, who did not speak any English, picked me and three other pilgrims (who I did not know) up in Hornillos del Camino and drove us 10 kilometers to their establishment.
It was a converted sawmill set in grove of trees. When we walked inside the front door, the walls were covered with family photos, but oddly Martin Sheen randomly appeared in many of them. When we were shown the kitchen, I turned to other pilgrims and said, "Do you recognize this kitchen from The Way?"
They all agreed that the kitchen appeared in the movie. Suddenly the family photos with Martin Sheen in them made sense. He obviously was kind enough to pose with the family.
Embarrassingly, I found out in O 'Cebreiro from a couple who lived in Los Angles that Martin Sheen's grandson had married the daughter of the couple who owned El Molino.
So, the photos that contained Martin Sheen were actually family photos.