After spending decades making blockbusters, the filmmaker behind 'Better Luck Tomorrow' looks inward with his captivating drama based on the true story of missionary John Allen Chau.

When director Justin Lin's new indie feature "Last Days," about 25-year-old missionary John Chau who was killed when he made contact with an isolated tribe, ran into financial woes, the filmmaker (also known for blockbusters in franchises like "Fast and Furious" and "Star Trek") fortuitously got a call from Keanu Reeves.

The 'Fast & Furious' franchise helmer's new film relates the true-life tale of a young man who met his doom while attempting to convert an isolated tribe.