As a huge Sherlock Holmes fan I enjoyed the movie but thought it was like the dumbed down, sanitized summer blockbuster version.
They got Sherlock Holmes's arrogance and awesomeness right, but they left out his edgiest aspect: Sherlock Holmes did mad drugs, son. Holmes not only had a healthy morphine habit, but also would shoot up cocaine subcutaneously (under the skin, aka "skinpopping") to ward of the "ennui" between cases. I didn't mind the silly zaniness so much as the kid friendly, PG13 bullshit. Even the (totally awesome) BBC series showed his drug paraphenalia and Watson's negative reaction to it. Gods forbid we have an awesome hero that indulges in proscribed substances. That said, I'll watch the sequel, but it's really more of a children's movie compared to the real deal.
"Which is it to-day," I [Watson] asked, "morphine or cocaine?"
He raised his eyes languidly from the old black-letter volume which he had opened.
"It is cocaine," he said, "a seven-per-cent solution. Would you care to try it?"
*
[Holmes:] "Hence the cocaine. I cannot live without brain-work. What else is there to live for? Stand at the window here. Was ever such a dreary, dismal, unprofitable world? See how the yellow fog swirls down the street and drifts across the dun-coloured houses. What could be more hopelessly prosaic and material? What is the use of having powers, Doctor, when one has no field upon which to exert them? Crime is commonplace, existence is commonplace, and no qualities save those which are commonplace have any function upon earth."