New Photo of Optimus Primes Big Brother from Transformers Dark of the Moon March 1, 2011 Meet Optimus Prime’s “big brother and mentor.” The April issue of Empire Magazine hits the shelves this week and with it comes the first photo of ‘Sentinel Prime’, the autobot described as a “big brother and mentor to Optimus Prime” in the upcoming “Transformers: Dark of the Moon”. We got our first look at Sentinel Prime when he was revealed in the movie’s teaser trailer. According to the article, “Dark of the Moon” won’t include sand or “dorky humor,” marking a decisive departure from the setting and tone of “Revenge of the Fallen.” Additionally, expect a fairly sizable robot body count — and when characters die, they’re going to stay dead. But before they go to that big junkyard in the sky, the ‘bots will receive a strong amount of characterization and back-story, something that was “missed in movie two.” Sentinel Prime is the big addition to the Autobots, but the Decepticons are bolstering their ranks as well. The previously announced Shockwave is joining the fray, as is a Ferrari sporting the name of Dreadbox. The scale of one of these new Decepticons is “jawdropping,” according to the article.