If watching movies on mobile phones is on the rise I believe the film format should be smaller.  The 10 meter wide high resolution dream filled with 3D and details doesn’t make it to a smaller screen, the details will be gone or smoothed out.

Also watching a movie on a mobile isn’t an all night thing, unless you are hiding in your bed under your blanket, so the stories should be kept short.  Think 20 minutes train ride or 7 minutes with a tram.

There are already books being written on and for mobile phones, why not take the moving pictures there too?

I guess it can be less expensive  too, smaller images allows cheaper cameras and less resources for editing.

Bring on the story telling!