While I was watching Jurassic Park with my 6 year-old nephew today, I noticed how long some of the shots lasted, and how sparsely a very-close-up framing was used -- there were way more long and faraway shots than in a typical movie from the past 40 years. It seemed like every other shot had multiple characters in frame, who were also moving around to make interesting spatial arrangements (rather than purely naturally).
Since most viewers are unfamiliar with the movement and pacing of Studio Era Hollywood, they need a reminder to anchor the approach they're seeing to an old movie that they have seen. As the towering, torch-lit gates to the park are opening up, one of the characters asks, "What have they got in there, King Kong?"
Here is a short article by Warren Buckland that quantifies these aspects of the movie, while comparing it to The English Patient, which is more typical of contemporary filmmaking in having shorter shots, closer-up framing, and less camera movement.
Whether you want to give your kid something to watch that won't warp his attention span, or you're looking to get more comfortable with the old approach yourself, Jurassic Park is a great introduction.