Patty, don't forget, scientifically speaking, "Time" is the 4th dimension. And, as far as i'm aware, all films take a period of time....
So, 2D films also have a 4th dimension...soooo...i suppose, you could call them 3D !
Which would make 3D films....4D!! lol[tongue]
Mind you, if memory serves me correctly, to enable "string theory" and "Quantum theory" to both work there need to be at least 10 dimensions...
Now, what would THAT mean for the Hobbit?...and imagine the debates on these forums! lol [crazy]