Note: This review is based on a screening of the English dub of Arrietty, hence the use of the English voice actors. Who are all excellent, incidentally. Arrietty (Saoirse Ronan) is a member of a race of thumb-sized people called Borrowers, so named because they sneak out of the nooks and crannies of human houses in order to 'borrow' whatever they need to survive. It's a perilous existence, since the smallest, most benign object to humans can be a life-threatening hazard to a Borrower, but it's also one filled with a sense of wonder and adventure, one which Arrietty is eager to join once she comes of age. On her first 'Borrow' with her father (Mark Strong), Arrietty is inadvertently spotted by Sho (Tom Holland), a sickly young boy who is staying in the house, which is owned by his aunt and secretly the home of Arrietty and her family. Initially ashamed and afraid, since being seen by humans is considered the greatest threat to the Borrowers, a tentative friendship develops between Arrietty and Sho, one that could save her family from the nefarious attentions of the housekeeper (Geraldine McEwan) who has become obsessed with finding them.