TMBTM said:
I was more thinking of a way to turn a 3D version without depth of field into a 2D version with depth of field. Don't know if it's possible though.
Actually, that is possible to do. the 3D data definitely allows you to add depth of field to the image as it knows the distances between objects and focal points.
Though shooting without depth of field would require a really short lens and a very narrow f-stop which would make the cinematography even harder.
Also, this doesn't have the right depth of field but this video does provide an example of how high enough parallax difference between points makes much more realistic 3D in which your eyes can focus and convolute from and to different points.