Yes that sound kind of ridiculous to me. I don't even understand the reason why they skip the R rated part since, unless I'm wrong, R in the US means that you need an adult with you to see it (if you give the ok it sound like the same to me). I guess that was quite a waste of time for Brittany and the other young adult (common at 16 we are young adults...) to see a film this way.
When I think that when I was at the elementary school the school shown us a film with bare breast... But after the third time they stop the projection
Anyway in place of this we played two hours or so outside and at 10 years old it was way more fun to do that than watching naked girls