Jason Lapeyre and Robert Wilson‘s I Declare War is riddled with glaring, grating flaws. The performances from the young actors are inconsistent. The cinematography and effects look cheap. Character arcs and plotlines lose their energy and focus. And yet I Declare War is incredibly charming. It’s fun watching kids be kids in a game adults have become too self-conscious to play. It has the vibe of a big, backyard movie that kids would make with their friends if they had a little more money and time. The picture also makes the worthwhile argument that coming-of-age means betrayal and jealousy, and that the kids games are about to vanish.