Rachel McAdams has kept a pretty low profile for the last few years, preferring to take on smaller indie flicks over big studio projects.  But she’s beginning to re-emerge at the megaplexes, with her role opposite Ben Affleck in “State Of Play,” and her next project, working with Robert Downey Jr. and Jude Law in Guy Ritchie’s “Sherlock Holmes.”  We asked McAdams to clue us in on a few details regarding the highly anticipated detective film. (CLICK ON THE MEDIA BAR BELOW TO HEAR RACHEL McAdams)