Negative Space Oscar-Nominated Short

A Primer of Visual Literacy that we read comments on this notion of how in media, television, movies we see a lot of references to visual cues but how a deeper literate understanding can strengthen that grasp of connection. This is an Oscar nominated animation short I saw a while ago that I thought does an insightful job portraying a father-son relationship - alluded to the poignant title.
-Hoyt