I've seen things you people wouldn't believe
Watched it last night with my two eldest kids; even though they've been brought up with the modern blockbuster style of fast cuts and breakneck storytelling speed, they weren't turned off by the languid pacing of the spectacle. They were completely enthralled by the whole experience and didn't find the 2 hour 43 minute running time a chore at all.
As someone who adored the original film, I came out of the cinema totally awestruck - I haven't been this impressed by a film in a very, very long time. It's fantastic to see a film like this that doesn't automatically assume its audience has the attention span of a gadfly, and is prepared to ask awkward questions about the nature of humanity.