The Family Fang written by Kevin Wilson and David Lindsay-Abaire, directed by Jason Bateman
This film is pretty much every parent's I-Was-Right dream: the kids grow up (that might take a bit), and actually flourish.
This film is also every kid's I-Was-Right: blame parents for all the baggage, and once you learn to cope / move on, life gets good.
The premise for the film is two artists who marry, have kids, and continue to produce street performance art with the help of their kids. The range and audacity of these productions then sets up the Who-Was-Right question.
While one could watch this just for the street art, it's worth a viewing just to tussle with the themes.