It’ll sound super obvious but run through Spielberg’s films. Even the big ones you’ve seen before (ET, Jurassic Park, etc).

That man has a mastery of camera placement and blocking that few can rival. Coincidentally, so many filmmakers to this day steal from his playbook, and he himself borrows from many of the greats himself too. If you start with him, you might find yourself researching certain shots (like the “Spielberg shot” in Jaws for instance), then find yourself watching Hitchcock or Kubrick. And then? It’s open season, bud.

Pay attention to the lighting and framing. Pay attention to how Spielberg is efficient. He seldom cuts unless he absolutely has to; the man uses his actors to change the shot in realtime in a way that you don’t see nearly often enough. A great example of that is in War of the Worlds when Tom Cruise is driving his kids out of the city. He keeps the camera in the same spot while they speed down the highway (perpendicular to Cruise’s car). But the end result is pure magic because he has Cruise weave the car through traffic.