During a school break, the kids in one snowbound town stage a huge snowball fight. This Canadian digitally animated family film is directed by Jean-François Pouliot and François Brisson, and adapted from an earlier work, The Dog Who Stopped the War. It’s aimed at kids, with lots of frantic action and silly jokes. It’s rooted in the small realities of kids’ friendships, but also finds space for some fantastical elements, like the properties of a giant snow fort. It ends up with a life lesson that is a bit of downer, and might be upsetting for more sensitive kids.