Dragon by the Tail 1961

Directed by Jacques Tourneur

Josephine Little, an expatriate American importer-exporter of sometimes unscrupulous dealings, is recruited by Central Intellegence Agency operatives in Hong Kong to help recover an American born scientist away from the communists, holding him him in North Viet Nam. She goes through with the dangerous mission, in hopes of securing a scrap metal deal with the U.S. government.