Rachel McAdams is currently shooting Guy Ritchie's SHERLOCK HOLMES in London along with fellow actors Robert Downey Jr. and Jude Law.
The first pics of her on set have been posted. She is all done up in hair and make-up but obviously not wardrobe.
McAdams plays Irene Adler. Adler is a character featured in only one Sherlock Holmes story "A Scandal in Bohemia" in 1891 but is regarded as one of the most notable female characters of the Holmes series. She is the only woman Holmes has ever admitted to as "beating him."