I actually posted a secret about this documentary (years ago, now) where I admitted my embarrassment over how much coded stuff had been going right over my head (I guess I have some sympathy for the censors.)

I've been watching a lot of old movies on TCM in recent months and I've noticed that I've gotten pretty good at picking out what movies and shorts were pre-code, even if I tune in right in the middle of something with no idea what it's called or what it's about.