Got it.........
.................The film was called 'Sole Survivor'........Bayernwald is right it was loosely (very very loosely as there was no survivors in reality) based on the disappearance of the Lady-be-good. It used the general plot of the aircraft going missing over the desert when the crew thought they were over the sea – as is thought to be the case in the Lady-be-good story & that the wreckage was found by an oil company – again as is claimed in the Lady-be-good story – the rest of the film is shall we say is full of artistic licence…………….I don’t know whether the makers ever claimed it was based on the Lady-be-good, but they certainly plagiarised parts of the story