I watched the movie years a go and I wasn't impressed. Read the comic a couple months ago and it blew my mind.
Now, I haven't seen the film in years so it's difficult to pinpoint the exact grievances I had with it, but one of the things I remembered was how poorly the fight scenes were executed. Snyder didn't understand the comic at all.
Remember at the beginning of the comic there were two detectives investigating the comedian's death? One of the things they pointed out was that there had to be two assailants because there was no way in hell one guy could have dispatched the comedian in such a fashion. I thought that was smart because it basically does two things at once; Firstly, it tells audience that this super hero story is a bit more grounded and there are no Batmans here doing impossible physical feats and second, it throws you off Ozymandias' scent
But the movie got characters doing things like this

: