I... What can I even say?
Unless the trailer is badly representing the movie--something that admittedly does happen--this is a horrible mistake for everyone involved.
Rough Victorian sex? A [BEEBEEP} Roadrunner dive out the fifth story window? Really?
In isolation, Robert Downey would seem a good choice for Holmes. Brooding, intelligent, a bit aristocratic. Hell, if he wanted to play the great detective as one of his patented troubled drug addicts, Doyle gave him cover.
But this doesn't look like Sherlock Holmes. It looks like Eddie Murphy's Axel Foley soaked in bleach and stuffed with a flimsy English accent. I'm not sure why it's not called "The Playboy Action Figure." It would probably sell.