Here is what Michael Bay said over to Shoot for the Edit forums about the article for the problems with 3D: "Wow, I read these morons on the internet who think they are in the know. "We have have problems with our 3D????" Really? Come into my edit room and I will show you beautiful 3D. There has never been a live action show that has pushed the boundaries of 3D like Transformers 3. We shot the entire movie with 3D cameras. I actually loved shooting in 3D. I will give full details of my process and why I liked 3D in the next week right before the Transformers announcement piece comes out on Tron and Narnia. And don't watch this movie in 2D, we made it for 3D. Michael" So this is an indirect confirmation that the trailer will debut with Narnia on December 10th and that the whole movie was shot with 3D cameras and looks great.