I wasn't trying to be controversial, I just didn't like the film as much as some people here did. It's a shame we can't post dissenting opinions without fans trying to undermine them.
I don't have a short attention span, either. I've enjoyed longer films. This one just didn't seem balanced. It's hard to explain why, but it felt like it would have been better had it been half an hour shorter, and hence more focussed. (Or else turned into a 3-part or 6-part TV series.)
I suspect it would come across better on a second viewing, with a better prior knowledge of what's going on. I've not read the comics and didn't know, eg, what was going to happen to Harvey and Rachel. I was also expecting plot twists that didn't happen.