10 million Americans watched a 3D film this weekend

BoxOfficeGuru revealed that, because of The Avengers' monstrous opening, 10 million Americans watched a 3D film this weekend. By my estimates, that's the most for a single film ever, in that timeframe. Big news! It also validates my earlier theory that the 3D version is of historic importance.

Now the question is... will its 3D attendance beat Avatar?