OH NOES!!! It's not teh Geewun!!! I personally think it's a good idea. And like someone said before, they found a way aruond it in the DW comics, and I'm sure they can do something similar for the movie to make the jets and cars be roughly the same size. I think they mean that they're going to avoid any really unbelieve mass and size shifts, i.e. a handgun or tapeplayer.