I had a light afternoon and the Mitt documentary was on at my family's house, so I watched it (well all but 8 minutes of it, and I think we all know how it ends).
It's a bizarre little movie because it's entirely personal and completely contextless. That said, Mitt comes across as genuinely humble throughout this film. Although I find the concept of filming the family prayers somewhat bizarre, I honestly enjoyed it.
The most astonishing part is that the campaign people let this guy film this much, although I guess it's not surprising that he appears to have not been let in on the strategy parts of the campaign at all.