Near the end of the movie, the Nuncio warns Noriega that if he isn't careful, he'll end up like Mussolini, strung up by his heels. Bob Hoskins, who played Noriega, had already met that fate in the 1985 movie biography of Mussolini, whom he played.
Al Pacino signed on to play Noriega for $10m on a pay or play basis. When the project didn't go ahead, Pacino declined to take the paycheck, telling Oliver Stone he'd wait to get paid if he worked with him in the future. The pair later re-teamed for " Any Given Sunday ".