Robert Downey Jr. and Rachel McAdams Film Scenes for ‘Sherlock Holmes’ in London (PHOTOS)

Robert Downey Jr. and Rachel McAdams got down to business Thursday afternoon as they shot scenes for Sherlock Holmes: A Game of Shadows in London.

The 32-year-old beauty was dressed to the nines in a blue corset dress and hat, while RDJ appeared to be wearing some type of Chinese disguise.

Rachel, who is set to reprise her role as Irene Adler in the movie, looked pretty serious while she filmed her scenes, but still found time to enjoy a few hearty laughs in between takes.

Check out the latest set photos from Sherlock Holmes, then be sure to see A Game of Shadows when it hits theaters on Dec. 16.