During the Credits
There are a few scenes shown during the credits of The Secret World of Arrietty that continue the story of the film. Check out more details and spoilers below.
The scenes show Arrietty and her family traveling down the river to find a new home. Arrietty is amazed at all the new things she sees along the river (fish, new plants, etc.). At one point Spiller grabs some berries and gives them to Arriety.