There are a lot of discoveries. This is what makes this movie good and many others. Here are a few of them:
1. Everyone thought that William was dead, but they find out that he is alive and well.
2. William finds that he can overcome his fears and past demons in the most unlikely way, through a friendship with a kid. What makes this even more surprising is that they are from different worlds.
3. What is true for William is also true for Jamal. I am sure that Jamal did not except William to help him in his life.
4. The audience also find something. The joy of discovering blessing and joy from unlikely places. It is a challenge to look beyond fears and exteriors.