Downsizing takes the dullest path through a brilliant premise

Welcome to Cheat Sheet, our brief breakdown-style reviews of festival films, VR previews, and other special event releases. This review comes from the Toronto International Film Festival.The greatest science fiction stories generally start with a single, significant change to the world, then consider what other changes would follow. Ambitious science fiction considers radical changes to culture and humanity, and possibly to the entire universe. The smaller-scale stuff might just consider how a h