Been a whie since we had a movie review. I'll just treat this one like I do the game reviews.
You don't need a consulting detective to tell you this a good movie.
I love Sherlock Holmes. All the crazy little things he does from wearing disguises to practicing poisons on Watson's dog. However, my favorite thing about Sherlock is his ability to figure things out before they happen, to see all the little clues and piece them together and then make you feel like a complete moron for missing them. Also, Sherlock Holmes is not an action movie super hero. You won't see him pick up a grenade launcher and start blasting his way through nazi zombies, in fact he barely even uses guns but can really handle himself in a fight. So I can say that I really enjoyed this movie.
The year is 1891 a series of explosions has sent Europe teetering on the brink of war. Some believe it to be anarchist cells or political sects however Sherlock is convinced that the mastermind behind it all is in fact his nemesis Professor Moriarty. So Sherlock begins a game of cat and mouse, a game of shadows, to stay one step ahead of Moriarty and prevent Europe from creating a world war. (Sad thing is it'll happen in like 20 years).
The first thing that should be said about A game of Shadows is that it does not have all the mystery of the first movie. That is not to say that Sherlock doesn't figure a bunch of stuff out in that cool way he does, it's just a little bit different from the last time. In the first movie you had all the weird magic stuff going on with Lord Blackwood, Moriarty doesn't operate that way and instead is that great intellectual villain that can challenge Sherlock in a game of wits. Also Moriarty isn't some wanted criminal, he is a highly respected individual, who is even friends with the prime minister of England! This adds for great confrontations of which there are several and makes the professor stand out as a great villain in my mind.
What Sherlock took out of mystery they replaced with action. The amount of gunfire explosions fighting and slow-mo especially was greatly increased. Within the first five minutes Sherlock fights four guys at once doing his little "plan out the whole battle before it happens" thing, and the scene in the woods is filled with some great action and slow motion scenes.
I found that this particular Sherlock was funnier than the last one as well as Sherlock and Watson go back and forth in their debates, and of course their all of Sherlock's charm's of hiding in his room and shooting Watson with 2 arrows when he walks in. (don't worry they weren't the lethal kind.)
As far as everything else goes you can look to the first movie sound track and acting were about the same which are both quite good and very enjoyable.
If you enjoyed the first Sherlock you will enjoy this one. I saw it with Dusty and while he says he likes the first I prefer the second. However the two are similar enough in quality that instead of getting into a huge "No your wrong!" fight, we respected each other dissensions and simply voiced our opinions like gentleman (with pistols!) Regardless if you've seen the first Sherlock you need to see A Game of Shadows, its defiantly worth your time.