Two things: Who greenlit a Green Hornet movie? Who the hell within the average, optimal movie going demographic knows or cares who The Green Hornet is?
Also, while I'm no cinematography expert, I believe one must shoot two distinct sets of film from slightly different angles in order to obtain a stereographic image (I read in in the fourth grade), which can then be viewed in 3-D.
Maybe they had the foresight to shoot it two camera style like Tommy Wiseau!
I think history is going to be much kinder to that man after The Green Hornet comes out.

They should have made a Brown Hornet movie, instead.

http://www.youtube.com/watch?v=Ez3LJTOGLTA

Please! No more 3-D Movies! I already have trouble justifying $10.5 each for a movie, now you want me to pay $15 to get headache? How is that an incentive to see your crap movie?
No F-ing way.