Even the most movie-addicted people I know don't usually take the time to re-watch movies with the DVD commentary track on. I do, but I was a filmmaking major in college, and have a really high tolerance for obsessive introspection in any format.  

But if you haven't seen the movie Spy Kids, go watch it, especially if you haven't seen it because it's a kids' movie and you aren't a kid. It is a kids' movie, but in a way that you should still be a kid.  

And then, if you haven't seen Spy Kids 2, go watch that, especially if you haven't seen it because it's a kids' movie (see above), and especially if you haven't seen it because it's a sequel. It is a sequel, but it's the kind of sequel that the first movie makes wonderfully possible, not cynically expedient.  

And then watch Spy Kids 2 again with Robert Rodriguez's commentary on. It's not laborious annotation, it's an accidental evangelist's 97-minute exhortation to creativity and experimentation and simplicity and complexity, and not only makes me love the movies more, but makes me happier and more excited about art, craft, technology, freedom and everything I haven't tried yet.