Lethal Weapon 2 (1989)

Two years after the events of the first film, LAPD sergeants Martin Riggs and Roger Murtaugh are pursuing unidentified suspects transporting an illegal shipment of gold krugerrands. The Afrikaner apartheid government of South Africa subsequently orders Los Angeles consul-general Arjen Rudd and security agent Pieter Vorstedt to warn both detectives off the investigation; they are reassigned to protecting an obnoxious federal witness, Leo Getz, after an attack on Murtaugh’s home.

It soon becomes clear that both cases are related: after an attempt on Leo’s life, Riggs and Murtaugh learn of the former’s murky past laundering funds for vengeful drug smugglers. Leo leads them to the gang, but upon dispatching his would-be assassin and returning with backup they are confronted by Rudd, who invokes diplomatic immunity on behalf of his unscrupulous “associates.” Though instructed to leave the case alone, Riggs begins to openly harass the South African consulate, defying Rudd and romancing his secretary, Rika van den Haas, a liberal-minded Afrikaner who despises her boss and his racial philosophy.