Today i had cause to search for a clip* on YouTube. I found a suitable example quite quickly, but there was something screwy with the formatting - odd looking, almost leather effect, black borders all over the place and a square kind of picture.
This was because the person making the clip had propped up their smartphone to use as the source and recorded the clip with a second phone. Held in portrait mode.
Hanging's too good for them.
* the bit in Hannibal Brooks where elephant gets translated as "ve're here".