It also helps that Peter is also so very unassuming (well, mostly, at least my perception of him). It's NOT like he's a traditional "ivory tower" sort of talking head, or anything. Fairly plain-spoken, or certainly direct and (I think) pretty unpretentious. So all those qualities, added to the fact that he and others on the project had a personal connection to the war (through their own relatives), really helped "humanize" the story BEHIND the story, and the rationale for the whole project in the first place (or how it came to be). ANYWAY, my main point is that Peter's talking-head stuff at the end was a big plus for me, and probably (I'm assuming) really reframed/reset/redirected my own personal emotional response to seeing the whole thing. Without that last 30 minutes of "behind the scenes" stuff, I think I would have walked out of the theater a bit of a mess -- not entirely, but the whole experience would have felt a LOT heavier (god, it was heavy enough as it was). I mean, clearly War is Pointless. But I might have left the film (but for that "behind the scenes" mini-doc)... ...I might have left the film also feeling like watching that kind of documentary about WWI was pointless too. Maybe "pointless" isn't the right word -- clearly the war had a purpose. But the "pointlessness" of the individual experiences of those in the war (and the pointless losses of life, on such a huge scale) were monumental. TL;DR: I already felt enough damn "uugh" in my gut in reaction to the main film, that I fear how much MORE "uugh" I might have felt without that "making-off" mini-doc.