The Adventurers(1970)

Overview

The wealthy playboy son of an assassinated South American diplomat discovers that his father was murdered on orders of the corrupt president of the country- a man who was his father's friend and who, in fact, his father had helped put into power. He returns from living a jet-set life in Europe to lead a revolution against the government, only to find out that things aren't quite as black and white as he'd assumed.