Study after study confirms that even when you control for variables like profession education hours worked age marital status and children men still are compensated substantially more - even in professions like nursing dominated by women. No wonder there's a gender gap.
I hope people don't compare 2D and 3D because 3D's new it's unfair to compare to 2D which is really sophisticated even when we're jaded about it. 3D just began give it a chance let the equipment and projection system catch up and be better let the price go down let more filmmakers get a hold of it more easily.