
Here's the description from the theater's Web site:
"This is the true story of Sadako Sasaki, who was 2 when the atomic bomb exploded over Hiroshima and 12 when she was afflicted with radiation sickness. Legend claims a person who folds a thousand paper cranes will be granted a wish. Sadako began folding cranes, wishing to be well, wishing an atom bomb would never be dropped again. Before her death, she folded 644 cranes. Her friends and classmates folded 356 more to make a thousand. Her spirit of hope and strength continues to inspire young people around the world to work for peace."