Half Pint Heroes

From the whimsical to the heart-pounding, here are five adventure stories for teens and under. Watch a kid change an entire town with made-up words in “The Bugabaloo Boy.” Get history raw in “The Girl Who Invented Peanut Butter.” Plus giants (“Axel and the Farmer”), a boy raised by aliens (“A Time of Leaving”), and a frightening rescue mission (“Owl Hunt”).