Isle of Destiny (1940)

Society glamor girl/aviatrix Virginia Allerton decides to alter her around-the-world flight by stopping off on the Pacific isle of Palo Pango where her brother, Lieutenant Allerton is stationed with a detachment of U.S. Marines, including "Stripes" Thornton and "Milly" Barnes. Local smuggler Barton baits her into a trap using her plane for his gun-smuggling racket and she ends up wrecked on another island. Thornton, as a stowaway on Barton's plane, and Barnes, by water in a stolen speed boat, rush to her rescue. Inda, the jealous native wife of Barton with a penchant for dispatching people with poison darts from a blow gun, does her best to do the same to Virginia.