Deal of the Century (1983)
Arms dealers from several companies vie to sell the most expensive and highest tech weapons to a South American dictator. There are complications; understanding the exact nature of how 'gifts' are used to grease the wheels of a sale, a religious conversion from one of the salesman and a romance that begins to grow between two competitors. based on novel or book, cold war, satire, dictatorship, arms dealer
ETC.
