Watch on 123Movies. Panama’s strategic geographic position has long been its greatest economic asset, with the Canal serving as the cornerstone of its development. Yet for decades, control of this vital waterway remained in the hands of a foreign power. Through interviews with residents of Panama City, Una bomba a punto de estallar (1977) captures the hopes, doubts and political sentiments surrounding the negotiation of the new treaties between Panama and the United States, offering a vivid portrait of a nation debating its sovereignty and future.