Lorenzo's Oil

Lorenzo's Oil is a 1992 drama film directed by George Miller. It is based on a true story of Augusto and Michaela Odone, two parents in a relentless search for a cure for their son Lorenzo's adrenoleukodystrophy (ALD). The film was nominated for two Academy Awards. [ source: Wikipedia ]

Powerful movie based on real life story.
The courage of everyone to press on till the end.