Reader Giuseppe tells me there's another immigration-themed movie currently in theaters. It's called Under the Same Moon and here's a plot synopsis:

Nine-year-old Carlos aka Carlitos is one
of the countless children left behind by parents who come to the U.S.
seeking a way to provide for their families. His mother, Rosario, has
worked illegally as a domestic in Los Angeles for four years, sending
money home to her son and mother to give them a chance at a better
life. When the death of his grandmother leaves young Carlitos alone, he
takes his fate into his own hands and heads north across the border to
find his mother. As he journeys from his rural Mexican village to the
L.A. barrio, Carlitos faces seemingly insurmountable obstacles with a
steely determination and unfettered optimism that earn him the grudging
respect and affection of a reluctant protector, a middle-aged migrant
worker named Enrique. The unlikely pair finds its way from Tucson to
East L.A., but the only clue Carlitos has to his mother's whereabouts
is her description of the street corner from which she has called him
each Sunday for the last four years. Unaware that Rosario is only hours
away from returning to Mexico to be with her son, Carlitos and Enrique
desperately comb the vast unfamiliar city for a place he has seen only
in his imagination.

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