I walked out after the church massacre scene

Rating: 1/10 (21 May 2015)

The summary line accounts for the only spoiler I'll include with this review.
Rarely have I seen a movie so full of acting potential that ended up being so completely wasted. Colin Firth should be ashamed of himself for "acting" in this excuse of a film.
I get the uber-violence genre. It worked in Kick Ass, it worked in The Hills Have Eyes. In this movie, it was just gratuitous and unnecessary. To be honest, it made Kick Ass 2 look like the Sound of Music.
I went to the movie with my wife and two friends. They sat through it; I didn't. About half an hour before it ended, I walked out, found the movie theater's manager, told him some little 5-year old kid was running up and down the isle squealing in delight while people were being butchered on screen and his parents were too busy taking selfies in the front row to notice (no joke, this actually happened - the mother was wearing a burka, so I can't say exactly how the selfies turned out, but they DID use a flash). An usher was immediately dispatched and the family was escorted from the theater. Apparently, they'd been there for 6 hours, slipping in and out of different movies all day.
Now you'd think that THIS was what got me to walk out, but I can assure you, it wasn't. It was the asinine dialog, the poor attempt at acting (a miserable failure, by the way, from some of the great actors of our time) and the unrelenting noise and violence, editing snafus, ridiculous attempt at character development, the complete inability for me to experience suspension of disbelief, the sad attempts at manufactured pathos... they all conspired to make me give up on this film before I lost any more brain cells.
My ticket was refunded by an apologetic manager. I told him it wasn't his fault that the British film industry lost its ability to produce anything that isn't crap. For what it's worth, he agreed.
I know there are a lot of 12 year old reviewers who are going to disagree with my review. But as someone who's been going to the movies once a week for over 40 years, this was hands-down one of the worst movies I've ever seen, and I've seen some serious doozies.