Boom! Smash! Pow! These are the sounds director Michael Bay makes when acting out his movies in the bathtub (or so we heard). Bay's boundless imagination has resulted in many an action masterpiece, including the greatest plastic-to-film adaptation since Mickey Rourke’s face: Transformers. As the Mark Wahlberg-led Transformers: Age of Extinction tears through your local cineplex this weekend, you may wonder: what really floats through the mind of Hollywood’s most explosive filmmaker?