After Guy Ritchie's first semi-anachronistic take on Sir Arthur Conan Doyle's "Sherlock Holmes" series took in over $500 million at the box office back in 2009, it didn't take a master detective to figure out that there would be a sequel. Of course, that's exactly what the world is getting. Robert Downey, Jr. is back with another turn in his charming take on the super sleuth, donning a British accent and employing his trademark wry wit to give life to a Holmes more like his Tony Stark Iron...