I watched "Lord of the Rings: Return of the King" a total of 6 times in cinema (and the extended edition countless times on DVD since then) and still think very fondly of the experience. Just experiencing the awe when the beacons were lit and the camera flew through the mountains and the mind blowing moment when the Riders of Rohan appear on the horizon.
When the extended edition came out on dvd, i watched the whole trilogy at least once a year