She's returning to television after 20 years away for a TV adaptation of Oscar-nominee Bong Joon-ho's Snowpiercer.

Jennifer Connelly promoted her new apocalyptic series Wednesday at the Television Critics Association Winter 2020 press tour.

The 49-year-old Oscar winner looked effortlessly elegant at the event in a short black dress.

Stunning: Jennifer Connelly, 49, promoted her new Snowpiercer series Wednesday at the Television Critics Association Winter 2020 press tour while dressed in all black

Jennifer stunned in her outfit, which featured diagonal rows of clasps emanating from her collar.

The short look put her toned legs and fit arms on display, and she spiced up the outfit with a pair of pointy gold-toed heels.

The 5ft7in beauty wore her lustrous raven locks styled pin straight and resting gracefully over her shoulders.

Revealing: Jennifer's pristine look featured diagonal rows of clasps emanating from her collar and showcased her trim legs and fit arms

Lustrous locks: The 5ft7in beauty wore her raven tresses styled pin straight and resting gracefully over her shoulders

Jennifer's new series takes place in an alternate near-future in which humanity's attempts to combat the effects of global warming have backfired and covered the planet in snow and ice.

The remnants of humanity have banded together to live aboard a massive train that circles the globe continuously.

However, the hierarchy that existed before the crisis continues, and the wealthy riders live in extravagant cabins toward the front of the train, while lower-class denizens are squeezed into cramped quarters at the train's rear.

Jennifer stars Melanie Cavill, one of the first class passengers who also provides the trains daily announcements.

Unlike her fellow passengers at the front, she's more fascinated than repulsed the passengers in the back.

Coming soon: Jennifer's new series takes place in an alternate near-future in which humanity's attempts to combat the effects of global warming have backfired and covered the planet in snow and ice

Remake: The remnants of humanity have banded together to live aboard a massive train that circles the globe continuously

Winning cast: Jennifer stars Melanie Cavill, one of the first class passengers who also provides the trains daily announcements; pictured with (L-R) Graeme Manson, Mickey Sumner, Daveed Diggs and Alison Wright

Class tensions: Unlike her fellow passengers at the front, she's more fascinated than repulsed the passengers in the back

Jennifer posed on the red carpet with Nicole Kidman, who looked stylish in a patterned blazer with pink slacks.

She also shared the spotlight with her Snowpiercer co-star Daveed Diggs, who sported a thick beard and looked casual in black jeans and a gray and red striped sweater.

Mickey Sumner, daughter of Sting, is also part of the show's main cast. She looked relaxed in a cream-colored floral print dress with a burgundy skirt.

The Americans' Alison Wright cut a stylish figure in a black dress adorned with abstract gold designs.

Pretty in pink: Jennifer posed on the red carpet with Nicole Kidman, who looked stylish in a patterned blazer with pink slacks

Relaxed style: She also shared the spotlight with her Snowpiercer co-star Daveed Diggs, who sported a thick beard and looked casual in black jeans and a gray and red striped sweater

Casual: Mickey Sumner, daughter of Sting, is also part of the show's main cast. She looked relaxed in a cream-colored floral print dress with a burgundy skirt

Chic: The Americans' Alison Wright cut a stylish figure in a black dress adorned with abstract gold designs

Issa Rae beamed in a flowing dress adorned with purple, pink and yellow stripes.

Steve Buscemi opted for a low-key black suit, which he paired with a gray–blue shirt.

Miracle Workers' Geraldine Viswanathan showcased her curvy figure in a pink plaid dress with a high slit and white heels.

Former SNL star Nasim Pedrad looked lovely in an oversize peach blazer, matching shorts and a low-cut white top.

Colorful display: Issa Rae beamed in a flowing dress adorned with purple, pink and yellow stripes

No fuss: Steve Buscemi opted for a low-key black suit, which he paired with a gray–blue shirt

Leading ladies: Miracle Workers' Geraldine Viswanathan showcased her curvy figure in a pink plaid dress with a high slit and white heels. Former SNL star Nasim Pedrad looked lovely in an oversize peach blazer, matching shorts and a low-cut white top

The Plot Against America's Winona Ryder was looked classy in a dark brown blazer.

Hugh Grant of The Undoing was dapper as ever in a black blazer and a light gray shirt.

Dark Waters' Mark Ruffalo was casual in an olive blazer and a charcoal shirt.

Covered up: The Plot Against America's Winona Ryder was looked classy in a dark brown blazer

Dapper: Hugh Grant of The Undoing was handsome as ever in a black blazer and a light gray shirt