Transformers: Revenge of the Fallen - what an utter waste of ILM's talent. Sure the robots looked good and some of the action scenes were entertaining, but the story was a muddled mess and the humor was so immature that I honestly wondered if the screenwriters were 13 yr old boys at times. When I saw a pair of dangling robotic nuts, I wanted to kick the talentless hack Bay right in his childish nuts.
