This film is not just a great look back at "The War Room" and a nice catching up with the major players involved, but a discussion of how politics and campaigns changed in 1992 and how they have changed even more since then. Technology is a big part of course, but not just that -- as Frank Luntz (of all people) explains so well, the use of language has really shifted things.
I see this film as a bridge between "The War Room" and the books "Game Change" and "Double Down". Exploring campaigns is now a regular thing. In fact, just today (May 2017), I heard a program about a new book examining why Hillary Clinton's campaign failed. Has this interest been sparked by "The War Room"?