Movies & TV Shows with Keiko Niwa

Keiko Niwa is a Japanese screenwriter known for shaping richly detailed, emotionally precise stories for animated features and family-oriented storytelling. In the film and television space, she is especially associated with adaptations and narratives that balance wonder with human-scale intimacy, using careful character focus and vivid imagination to draw audiences into everyday worlds. Her notable writing credit includes The Secret World of Arrietty (2010), where her screenplay contributed to the film’s engaging portrayal of miniature life and the relationships that unfold within it, reflecting her strength in crafting tone, pacing, and heartfelt dialogue.