10/01/2015 13:44 GMT | Updated 20/05/2015 06:12 BST

Keira Knightley Takes Baby Bump For First Red Carpet Appearance

Keira Knightley has treated her baby bump to its first red carpet appearance - but she was hiding it well under a loose but pretty floral-print dress.

Jason Merritt via Getty Images

The actress headed to the AFI Awards held at the Four Seasons hotel in Hollywood.

MORE! Keira Knightley reveals she gets mistaken for Rachel Weisz and Natalie Portman a lot

Jason Merritt via Getty Images

Jason Merritt via Getty Images

Keira opted for natural makeup and a loose pretty plait. Her monochrome Erdem dress was super-pretty and featured a sheer bustline as well as a loose-fitting waist, cleverly disguising her growing bump.

A representative for Keira confirmed to Elle UK that she is expecting her first child with hubby James Righton back in December.

But she has so far not publicly commented on the baby news.

Keira Knightley Pregnant with First Child

According to the Daily Mail, every year the AFI honours "the 10 films and 10 television programmes deemed culturally and artistically representative of the year's most significant achievements in the art of the moving image".

And Keira's film, The Imitation Game, about pioneering codebreaker Alan Turing in World War II, was selected as one of those films.

Keira is also set to attend the Golden Globe Awards on Sunday night, and is nominated in the Best Supporting Actress category for The Imitation Game. Her competition? Patricia Arquette for Boyhood, Jessica Chastain for A Most Violent Year, Emma Stone for Birdman, and Meryl Streep for Into the Woods.

LOVE KEIRA? Flick through our gallery for more pics of the star's gorgeous red carpet style: