Long Steadicam shots have become a staple of Hollywood movies over the past decade or so. Pulling it off involves complexities way beyond the seemingly simple task of walking through a room.
In this behind-the-scenes clip from last year's Hugo, you can see the coordination and movie tricks that go into a great Steadicam shot such as moving walls, precise queues, and an agile boom operator. Most important is an extremely skilled camera-man. Steadicam operators carry a lot of weight and must be adept at maneuvering the equipment.