Jennifer Garner posed solo on the red carpet at the BAFTAs in London today. She wore Forevermark Diamonds and showed skin in a backless gown by Roland Mouret after stepping out in a more covered-up look for a pre-BAFTAs dinner last night. Jennifer is in the UK to support her husband, Ben Affleck, who is nominated for multiple awards at tonight's show. He's in the running for best director and leading actor for Argo, and the film is also up for the prestigious best picture honor. It's been a busy year for Jennifer and Ben with all of Ben's big-screen success, and they have another stop to make at the Oscars later this month to see if Ben can take home the best picture win.