The blog “Box Office Quant” has an excellent post on “The Rise of 3D” from January 26, 2011.

“Since the Polar Express delivered us into an era of 3D revival in 2004, critics have been popularly proclaiming 3D as a dead medium walking. But what do the numbers show? Well, it appears the demise of 3D has been somewhat exaggerated.”

Using well-footnoted data, author Edmund Helmer slices and dices the numbers to show how and why 3D is incredibly profitable.