I was one of the few people who actually went to see it at the cinema when it first came out. I was crazy about the Napoleonic era, and pestered my dad into taking me (I was only 7 or 8, I think). I loved every second of it as a kid.
I know a lot of people find it too plodding and the battle too long but i have seen listings giving the Russian version at 3 hours or more [i'll have to check] which could account for the jumps you mention.
I find the1st hour build up a bit long too Juan rather than the battle. Great recreations of the battle though with those stunning aerial shots of the British squares and Hougomont and La Haye Sainte. It give the UK running time as 132 mins [the version i have always seen] and the US as 123 mins. I