This video featured on Mockingbird.
If you can spare 25-30 minutes you may not even be the precise target audience, but if you make the time (maybe over a couple of efforts) you’ll find it rewarding.
You won’t find it adds to your burden.
Maybe the best take away is instead of trying to teach kids their need for grace, constantly model before them your continuing reception of it.
EDIT: As Tasmanian comments below there is a movie referenced in the talk, and this is no commendation of the movie. The talk is helpful.
mgpcpastor's blog 
I just watched the movie she references. EEK. Very very very bad language. Often. Amongst other things. My conclusion is that she hadn’t watched it because I don’t think she would have endorsed it. Apart from that I loved her sermon.
Thanks for the heads-up. Haven’t seen the movie referenced.