The 28-year-old Arrow actress joined Dana, 41, for the show, where he’s a past nominee for Best Picture.
“Smile! #oscars officialvertu,” Katie posted from the red carpet with a view of the reporters.
Make sure to watch the 2015 Oscars, hosted by Neil Patrick Harris, airing TONIGHT at 8:30pm ET on ABC!
FYI: Katie is wearing a Julien MacDonald dress, Stuart Weitzman shoes, Salvatore Ferragamo clutch, Jacob & Co ring, and Harry Kotler earrings. Dana is wearing a Hugo Boss suit.