Pien is 10 and having treatment for cancer. After learning that crop pesticides and other human activities pose a mounting threat to bees and, by extension, the many foods they pollinate – she developed a passion for the creatures and took up beekeeping. Despite occasional stings, she finds a kinship with the insects, which, like her, are small, industrious and fighting for their survival. While her doctors are hopeful that Pien will make a full recovery, her chemotherapy treatments are an unwelcome intrusion on time she’d much prefer spending with her friends and her colony. With atmospheric cinematography and an observational style, the Dutch filmmaker Ellen Vloet’s short documentary Pien, Queen of the Bees is a sweet and touching portrait of childhood – even as weighty challenges for Pien and her hive hover throughout.