how do you watch vertical movies instead of horizontal movies. I have a vertical cradle in the car for passengers and cannot get movie to play vertically. Please Help. Iphone 3gs
Do you mean that when you rotate the phone from landscape ("horizontal") to portrait position ("vertical") the movie doesn't rotate to the right viewing position or it doesn't fill the screen?
The result should be a small picture since the width of the image is limited by the portrait mode width of the screen. It won't fill the hight of the portrait screen, as this would cut off most of the width of the image.
YouTube videos should rotate with the phone position. If not, use the basic troubleshooting steps described in the User Guide: Restart phone, Reset phone, Restore in iTunes using a backup, Restore in iTunes as new (without using a backup).