Very interesting. I will have to check that out sometime

On a similar note, i read a rather interesting article a few weeks ago about the differences between
RealD and
Dolby3D. I didn't even realise there was a difference until we went to see
How to Train Your Dragon last month. We went to see the film a different cinema than usual, which as it turned out had a Dolby3D system, rather than a RealD 3D system.
Anyway, the ticket person there said we couldn't avoid paying the full 3D surcharge by reusing our old glasses like they do at the other place, because they said their 3D projection system worked differently and required its own special glasses. At the time i thought they were trying to swindle us out of a little bit extra money (
stereoscopic 3D is stereoscopic 3D, right?) but after getting home on the internet and looking it up, it turned out that they were absolutely correct - Dolby3D, whilst still based on the same basic principles, does in fact require its own special glasses (
they are apparently alot more expensive than the cheaper RealD glasses, which is why they don't let you keep the Dolby ones).
But anyway, this article explains it much better than i ever could (
it also compares Imax 3D, but i think most people would already know that's much better anyway). I doubt there are many people here who would be fussy enough to go out of their way to see the film in RealD in preference to Dolby3D, or vice versa, (or even many people who would be able to tell the difference in the quality) but I thought it was probably worth knowing for those of you who like to bring your old 3D glasses to the cinema
http://3dvision-blog.com/what-to-choose-imax-3d-versus-reald-versus-dolby-3d-for-3d-movies/