Sin City: A Dame to Kill For isn't as good as its predecessor, but it's still a pretty good time. The story is still pretty solid and the characters are good, but something about the movie didn't click with me very well. I think it may have been some of the performances, and the different pace. Either way, I still enjoyed it.
Let's Be Cops was a weird experience for me. I enjoyed the movie, but didn't think it was good. It's hard to explain. The two leads were good, and I did enjoy the movie for the first half. The second half just got way too familiar and by the numbers though, so I don't really know what to think. I would recommend watching it though.