Vertical Video Preventer

Vertically oriented video is something that should not be allowed to happen. There is never, ever, ever an instance in which it is a good idea to take a video with your camera in the vertical orientation leaving black bars over 2/3 of the screen. For some reason though, people who take video on their smartphones - especially the iPhone - do it all the time. It just so happens that devices like this also contain orientation sensors making this idea pretty easy to implement. Just incorporate the orientation sensor into the camera app. When the camera is held vertically and the user attempts to record video, the screen turns black and the word "NO!" appears in bright red letters. A helpful arrow indicates the direction to turn the phone to film something. Vertical videos will never be inflicted upon the world again.

Some have suggested that the app just detect the orientation and turn the video automatically. I have two problems with that: one, camera sensors usually match the widescreen orientation so turning the video will result in some part of the sensor not being used. Two, it doesn't solve the problem that people who take vertical videos do it because they want to, never realizing that it is dumb.