Ashlee Simpson & Kelly MacDonald: 'Boardwalk Empire' Premiere!

Ashlee Simpson and a pregnant Kelly MacDonald hit the red carpet at the season three premiere of Boardwalk Empire held at the Ziegfeld Theater on Wednesday (September 5) in New York City.

The 36-year-old Scottish star of the show was joined by her co-stars Jack Huston, Michael Shannon, Vincent Piazza (Ashlee‘s beau), Gretchen Mol, Steve Buscemi, and Bobby Cannavale!

Also at the event was Stanley Tucci with his new wife Felicity Blunt.

Boardwalk Empire season three premieres on September 16 on HBO!

Also pictured inside: Ashlee and her son Bronx hanging around in NYC earlier this week.

FYI: Kelly is wearing a Pea in the Pod black lace insert dress, Edmundo Castillo shoes, David Yurman jewelry and a Kara Ross bag. Gretchen is wearing Pomellato jewels. Vincent is wearing a Billy Reid suit and shirt.

15+ pictures inside of the Boardwalk Empire cast at the season three premiere…