Howard Hawks directs, Cary Grant stars alongside Jean Arthur and Rita Hayworth, future and past lovers respectively. Not very gripping: some dicey flying of dicey planes with dicey cargo out of the fictional town of Barranca, South American somewhere. Not screwy, but there are some funny one liners; more Wages of Fear than His Girl Friday. Excess details at Wikipedia.
Frank Nugent wasn't that impressed back in 1939. He says Ecuador. Bananas are mentioned, and ships carrying them to the great northern markets.