This is the movie for the “no labels” generation. Keith Behrman’s Giant Little Ones (B+) eschews many typical coming of age conventions to chronicle a few weeks in the life of a teenage protagonist (Josh Wiggins, a thoughtful performer and dead ringer for a young Matt Damon) caught between a variety of impulses in the aftermath of a frisky birthday party. Marquee stars Maria Bello and Kyle MacLachlan are outstanding in supporting roles as the hero’s estranged parents in this contemplative Canadian production with lots of questions and few answers tied in easy bows. Darren Mann as the stoic swim team captain, Taylor Hickson as his distant sister and Niamh Wilson as a lovely female friend who may or may not be transgender are among the compelling characters whose story arcs don’t always travel in obvious directions. A brisk story and surprisingly tender dialogue give this drama additional distinction. It’s a sleeper film worth discovering buoyed by relatable characters and an optimistic outlook.