I didn't really want to live so anything that was an investment in time made me angry... but also I just felt sad. When the hopelessness is hurting you it's the fixtures and fittings that finish you off.
It really depends but generally speaking just because of the mechanics of it voice-over is easier because there is no hair no makeup no wardrobe no fittings no line memorizing. You don't have to me woken up in Russia at 6 in the morning and go film a scene. It's just easier on the body the family life to do voice-overs.
One of the consequences of the Iranian revolution has been an explosion of history. A country once known only from British consular reports and intrepid travelogues is now awash with historical documents letters diaries grainy video weblogs and secret police files of questionable authenticity.