The star – who played cute Hermoine Granger in the hit franchise – looked stunning as she arrived at the annual event for the promotion of her film The Bling Ring.
Posing with her cast members, the star donned a burgundy dress which came complete with feather detailing, looking every inch the Hollywood star.
Oozing glamour, the 23-year-old dressed her feet in a pair of black court shoes while she styled her hair in a side parting.
She kept the rest of her look simple with minimal make-up and just one ring, on her little finger.
The star kept the chill away with a Burberry trench coat before hitting the red carpet, laughing and giggle with her team as she prepared for her day to start.
Her movie is set to screen later on tonight, where the young actress stars as pole-dancing thief Nicki, who forms part of a gang who rob celebrities.
Speaking previously about the role, Emma said: “It wasn’t like I needed to go out there and try to find the furthest part from Hermione so I could get away from her, because that seems like a negative place to jump off from; trying to get away from something rather than trying to get towards something.
“What I’m trying to get towards is that I want to be a character actress. I want to play parts. I want to play roles that transform me. Nicki seemed like an opportunity to do that.”
