Sometimes, at least when you’re 14, the whole world hinges on getting to a party — and the urgency only mounts when life keeps throwing roadblocks your way. For the title character of the low-key charmer Olmo, those roadblocks shape a day of pivotal reversals and revelations, life-changing in the moment, perhaps, but especially in retrospect.
Beginning with his 2004 debut, Duck Season, a quiet fusion of goofy and transcendent, writer-director Fernando Eimbcke has brought…