The Patagonian Bones

The Patagonian Bones is a 2015 Argentine film written and directed by Ricardo Preve. With a telefilm format, The Patagonian Bones is based on the true-life story of Catherine Roberts, the first Welsh woman to die in Patagonia in 1865, and on the 20-year work of three Argentine scientists to identify her remains. The film had a successful run at international festivals, winning awards and nominations.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.