I don't know if anyone knows about this but on DVD players there is a button for changing the angle of the scene,if you did know it would seem that your in a secretive club similar to that of the freemasons because to my dismay this much overlooked function has been kept a secret from seemingly every major film studio...
Seriously though i have never once used this button on my dvd player,every other button on my remote control is blank through wear and tear but the angle button remains shiny and pristine like a sofa with a plastic sheet on it.
as far as i'm aware bluray has a similar function,lets hope they use it this time around
if you know of any dvds that make use of this function let me know which ones and im gonna compile a list