Simply the best documentary I've ever seen and one of best films I've seen in a long time.
It's the story of a missing 13 year old boy from Arlington, Texas who turns up alive and well in Spain three years later.
Saying any more would ruin the experience, but it really is one of those true life stories that you would never accept if it was a movie.
I can't recommend it highly enough.
When you can't see the angles on the wall you're in trouble.