Jungle 2 Jungle (1997)

The big city is about to get a little savage.

Uptight New York City executive, Michael Cromwell, pursues his soon-to-be ex-wife to South America and returns home with the son he never knew he had—a boy raised in a tribal village in Brazil. Armed with only his blowgun, the 13-year-old Mimi-Siku discovers that the world outside his jungle home is indeed a strange place.