Romancing the Stone (Blu-ray) used

A dowdy romantic-adventure writer is hurled into a real-life adventure in the Colombian jungle in order to save her sister, who will be killed if a treasure map is not delivered to her captors. She is helped out by a brash mercenary, and together they search for the priceless gem located in the map.

Often regarded as a light-hearted Raiders of the Lost Ark rip-off which performed well at the box office, just prior to the theatrical release of Temple of Doom.