I love Robert Downey Jr., and he's funny and engaging as always in the role he takes on in this film. Unfortunately, his character, though named after the "Sherlock Homes" invented by Arthur Conan Doyle, has almost nothing in common with his literary ancestor. This film's "Holmes" is a hyper-kinetic pugilist who excels at swinging numchuks, swan-diving into the Thames from second-story windows, and leaping about city buildings in a manner reminiscent of the Assassin's Creed video game franchise. For that matter, the hyper-real Victorian London of the film's exterior shots has a very similar computer-generated feel to it, one amplified when it vividly depicts the Tower of London on the wrong side of the Thames, among other gaffes.

There is none of the cerebral intensity, none of the subdued emotion, essential to Holmes as a character. A pipe appears precisely three times, and a cigar if proffered but unsmoked. Jude Law's Watson shows little affection for or understanding of this nouveau Holmes, and their little bits of stage business evoke nothing of the vital feeling between them.

That said, if a steam-punk action-adventure film that's built around three or four elaborate chase sequences appeals, this film may be a fun way to spent an afternoon -- it's certainly a decent "popcorn" flick. But anyone who knows anything about, or cares very much for, Conan Doyle's immortal character would be better off staying home and popping a few Jeremy Bretty DVD's into their player.