Keira Knightley showed a slight baby bump at the 2015 Golden Globe Awards Credit: Jason Merritt/Getty Images

Mama-to-be's night out! A pregnant Keira Knightley dressed her slight baby bump in a bold Chanel dress at the 2015 Golden Globes Awards. 

The Imitation Game actress, 29, walked the red carpet at Los Angeles' Beverly Hilton Hotel on Sunday, Jan. 11, just weeks after Us Weekly confirmed that she is expecting her first child with husband James Righton.

Knightley sported a tiny bump at the 72nd Annual Globes, dressing her new curves in tiered custom Chanel dress. The floor-length gown featured layers of white lace at the neck and hem, and a printed midsection of butterflies and bugs.

"Apparently it took 30 people to make this in a week," Knightley said on the E! Red Carpet telecast. "I want to say thank you to those 30 people." 

Nominated for Best Supporting Actress for her work in The Imitation Game, the expecting star appeared a bit overwhelmed by the fanfare ahead of the awards show.

"There's a lot of screaming," she exclaimed. "It's kind of a bit like a roller coaster!"

Knightley, who was previously nominated for a Golden Globe for 2005's Pride and Prejudice and 2007's Atonement, was joined on the red carpet by her husband Righton. She wed the musician, 31, in May 2013, but has yet to comment on the news of her pregnancy.