Late in writer/director Richard Linklater's Boyhood - the finest movie yet by the creator of Dazed & Confused and the Before Sunrise/Sunset/Midnight trilogy - there's a simple scene between a mother and her son. The son, who is either nearing or has just turned 18, is heading to college and is packing a bag in his room; he and his mom talk while she pays bills in the kitchen. Then, seemingly out of nowhere, the mother starts weeping. Her son enters the room and nonchalantly asks what's wrong (this is hardly the first time he's seen her cry), and she replies with a litany of romantic, professional, locational, and maternal decisions that we've watched her make over the course of the film. She asks where all that time went. Her son, offering a slight smile of empathy, goes back to his room and continues packing. The mother buries her face in her hands, and says, "I just thought there would be more."