I thought it was great

I'm surprised to see so many negative reviews on here. I just watched the film and I really enjoyed it. I thought the writing was great and every actor did a fantastic job in their line delivery. A lot of people seem to be complaining about the storyline being all over the place and unrealistic, but I enjoyed that. Every time the characters turned around something unexpected happened and an already bad situation just kept getting worse. A lot of random, unpredictable sh!t happens in real life, especially if you hang around with a pack of gangsters! I found this film funny and surprisingly upbeat given the material. It was nice to have a relatively happy ending, as opposed to In Bruges (a great film which had a very somber and depressing end). It was also nice to see Cillian Murphy (who is one of my favorite actors) in a comedy as I'm used to seeing him in dramas and thrillers.