Nice review. I agree there was the odd little thing that didn't quite sound natural to our well tuned ears but these were not important. With regard to pics of jesus with long hair, the songs & the broadcast, these all had to be approximated as they couldn't use the real thing due to copyright. Believing JW's may use the fact that the real pictures, songs aren't used to say its inaccurate but it has to be this way or they would be sued.
I believe the term 'guidance meetings' may be a regional thing as in an interview i think i heard the director say they were called that where he lived.
Its interesting that you say the mum reminds you of your mum. The director commented that he has been told this a lot.