Helen Mirren Celebrates 'Catherine The Great' Premiere!

Helen Mirren is gorgeous in a gown while hitting the carpet at the season premiere of her new HBO limited series Catherine The Great held at The Billy Wilder Theater at the Hammer Museum on Thursday (October 17) in Los Angeles.

The 74-year-old Oscar winner was joined at the event by her co-star Jason Clarke, as well as director Philip Martin.

PHOTOS: Check out the latest pics of Helen Mirren

Helen makes an appearance on The Ellen DeGeneres Show today and recalls camping in a tiny tent with her ex-boyfriend, Liam Neeson – Watch it here!

FYI: Helen Mirren is wearing a custom Badgley Mischka gown with David Webb necklace, earrings and ring.