We know it does three separate burns while coming back down (Boostback, entry burn, landing burn).

I wonder if each burn starts with the RCS thrusters to turn the stage "nose up".

i.e. when it's free falling, does it always roll around and fall nose down, requiring RCS to get it back to nose up?

It would be awesome to see footage from the entire return trip. Do they have cameras mounted on stage 1?