Oh my GOSH -- the trailer of the new movie looks like it is TOTALLY INNACURATE as to the true Sherlock Holmes (and I should know, as in my 52 years on this earth, starting at about the age of ten, I have read every Sherlock Holmes story at least a half dozen times, most of them several dozen times -- Conan Doyle was such a gifted, lyrical, beautiful writer and the stories bear much re-reading; I find them instructive, relaxing and therapeutic).
HOWEVER, one of the coolest things about Conan Doyle was that he gave express permission to dramatists who wanted to cast Holmes in plays, to do whatever they wanted with the character, even marry him off if they wanted. He was absolutely indifferent! So I expect I'll be able to enjoy the movie in spite of the fact that Downey Jr.'s Holmes looks to be nothing at all like the "real" Holmes!