Just in general. It just seems that docs have become more sophisticated with footage, or rather using animation or after effects to get around a lack of footage that you don't see live action dramatizations in high profile documentaries anymore. The subject was fascinating, but at times it felt like I was watching Unsolved Mysteries.
Back in the spring I saw Man on Wire at the Hot Docs festival in Toronto, and the director was on hand. He discussed the live footage a bit and it turned out a lot of people in the audience were confused about what was restaged and what was original. Are you guys talking only about the black and white reenactments in the WTC? Because I'm fairly certain he said the color 16mm(?) footage of the group rehearsing in France and of their travels around the world (to Sydney etc) was all original.
Then again, maybe that's obvious to everyone already.
Anyhow, this discussion reminded me of two other incredible documentaries I saw at that festival:
The Betrayal, about a Laotian family that was forced to move to the States in the 1970s after a CIA-supported military coup in their country. It was the most emotionally wrenching documentary I've ever seen -- the director, Ellen Kuras (who is a very respected cinematographer who has worked with Michel Gondry and Martin Scorsese a lot), followed the family for about 25 years so we see these children grow up and the parents become elderly, and you begin to understand how unpredictable global forces shape and often ruin people's lives -- but you understand it in a way that seems purely personal, not political.
The other one was called
The English Doctor, and it's about a neurosurgeon who travels regularly to the Ukraine from London to treat people for free. We see him perform brain surgeries and follow him to meet with the family of a young girl who, years before, died a horrible death because of a mistake he made (the scene where they serve him dinner at their house is the kind of drama that no fictional movie could ever pull off). The score is by Nick Cave, and as depressing as it sounds the whole thing is actually uplifting because this guy makes a huge impact on the people he works with.