The film is the first of a trilogy dubbed «trilogía del ruiseñor».
The success of the films allowed del Amo to set up his own production company Apolo Films with studios on the outskirts of Madrid.
[1] Joselito is a boy whose mother left town when he was just a newborn.
He lives with the grandfather, the village bell ringer, and his best friend is the sacristan.
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