Their Apple Records Roof Top Concert was the best. They literally brought downtown London to halt. I love the scenes of the stodgy old British guy walking on the street looking up at what all the hubbub was about. The cameraman kept coming back to him to show him moving closer and closer. You could tell he was into it, but he maintained his stiff upper lip throughout.
Yes, interesting documentary. But I don't know about "halt", in fact I thought it was underwhelming. I would have thought thousands of people would have gathered, but I guess that was before twitter.