We as a viewing public know a lot about Shia LaBeouf—or at least we think we do. He broke out, of course, as a child actor on the Disney Channel series Even Stevens, and after a couple of scene-stealing supporting roles he proved more than capable of being a leading man with Disturbia. He graduated to franchise frontman with Transformers, but the popularity of that blockbuster series also coincided with public incidents involving altercations, arrests, and rehab. With Honey Boy, a semi-autobiographical drama that plays out almost like a feature-length therapy session, LaBeouf aims to give …