Keira Knightley shows off baby bump at 2015 WGA Awards

LOS ANGELES, Feb. 16 (UPI) -- Keira Knightley showed off her baby bump on the red carpet Saturday.

The 29-year-old actress wore a white lace gown with black bib detail to the 2015 Writers Guild of America Awards. The empire waist cut of the dress accentuated her growing belly, and she paired the frock with simple pointed-toe pumps.

Knightley was on hand to support The Imitation Game, which won Best Adapted Screenplay at the ceremony. Graham Moore based the screenplay for the film on Alan Turing: The Enigma by Andrew Hodges.

British actress Keira Knightley wearing a custom @Burberry white lace dress at the #WGAAwards in LA last night pic.twitter.com/q94nENRnr4

— Burberry (@Burberry) February 16, 2015

#KeiraKnightley dressed up her baby bump for last night's #WGAawards http://t.co/XboxZqTqxf pic.twitter.com/v3vEhLa93o

— ET Canada (@ETCanada) February 15, 2015

Knightley and husband James Righton married in May 2013, and announced they are expecting their first child in December 2014. The actress admitted she is clueless about parenthood in an interview on Jimmy Kimmel Live! last week.

The Imitation Game is nominated for several awards at the 2015 Academy Awards, including Best Picture, Best Supporting Actress for Knightley and Best Actor for Benedict Cumberbatch. The 87th annual ceremony will take place Feb. 22 at 8:30 p.m. ET on ABC.