According to Rachel McAdams has signed onto Guy Ritchie’s SHERLOCK HOLMES starring Robert Downey Jr. and Jude Law. said:

Rachel McAdams has been cast as the leading lady in Warner Bros.’ new updated big screen version of “Sherlock Holmes,” has learned exclusively.

The deal is as good as done, and will be announced to the world at a press conference in London on Wednesday, October 1.

Although reporter Robert Sanchez spoke with McAdams at a junket and she had a very different story:

McAdams flat out denied that she had any involvement whatsoever on the film and seemed surprised we even asked. So, either she’s lying or Access Hollywood is lying…

Hmmm… seems like there has been a bit of miscommunication here.