The movie is almost here and this question has been bugging me for the past week. What is RealD 3D? What is IMAX 3D? What's the difference between the two? Which one is better? What are the Pros & Cons of each one? And Which one should I go see DOTM in? Also, how can I find out which type of 3D a theater is showing DOTM in? Your help will be greatly appreciated!