The A-list cast of Sherlock Holmes ventured over to London for the World Premiere of the long awaited film.  Though it was a rainy night, Rachel McAdams got gorgeously gowned in a grey, Grecian style Andrew Gn one-shoulder number, adding statement earrings and Christian Louboutin heels.

Gwen and Gavin were a coordinating couple, both rocking the black and white look.  Want all the details haute off the red carpet?  Check out the gallery in Style.