The opening scene of Gravity. If you haven't seen it yet, it's 13 minutes of stunning cinematography, ubelievably realistic CG, it's very slow, quite pedestrian and is just generally astronauts chit -chatting while on a spacewalk. Nothing much happens, and it builds brilliantly to the looming accident. However, it seduces you into the environment of space along with the dreamlike floating camerwork & 3D, so you get about 7 minutes in and don't notice any cuts!. Frankly, it's so mesmerising, I could have happily watched it all day.
There are many other long shots in this movie which are wonderful to watch. In fact, there's no irritating fast MTV-style cutting, no sudden jump cuts. It's all geared so that you have time to look at the detail. Perfect antidote to most action flicks. Love it