Cummings School fifth grader Kaylin Barry will help kick off the Summer Festival at the young company Stoneham Theater. The summer festival is the culmination of five weeks of preparation. The festival includes six fully staged productions, including “My Son Pinocchio Jr.†The performance will be Aug. 7 at 12 pm; Aug. 8, 12 pm and Aug. 9 at 12 pm. For tickets call the box office at 781-279-2200. Barry has been involved in acting for the past couple of years with performances at the Stoneham Theater, the Playmakers and the Winthrop School for the Performing Arts.