The new X-Men movie Dark Phoenix opens in theatres on Friday.
And ahead of the much-hyped movie's Los Angeles premiere on Tuesday night, the stars led by Sophie Turner, Jessica Chastain and Jennifer Lawrence headed to an appearance on Jimmy Kimmel Live.
Turner, 23, was all business in a stylish white pant suit while Chastain, 42, opted for a scarlet dress and Lawrence, 28, bridged the two with a cropped white t-shirt and red leather skirt.
Promoting their film: Sophie Turner, left, and Jessica Chastain, were among the stars of the X-Men movie Dark Phoenix who headed to an appearance on Jimmy Kimmel Live on Tuesday
Star power: Jennifer Lawrence, 28, was on hand, too, looking summery in a cropped white t-shirt and a red leather skirt with black ankle strap sandal heels
Dark Phoenix is a direct sequel to 2016's X-Men: Apocalypse and marks the final installment of the main X-Men series of films.
In the movie, Turner's character Jean Grey finds herself battling her Dark Phoenix alter ego, a powerful mutant force with telepathic and telekinetic powers.
The British actress, who recently tied the knot with musician Joe Jonas, looked fabulous in her chosen ensemble that was belted at the waist and paired with black heels.
She left her long blonde hair loose and sported cat's eye-shaped tortoiseshell-framed sunglasses as she headed into Kimmel's studio in Hollywood.
On trend: Turner, 23, was all business in a stylish white pantsuit with buttoned cuffs on the tapered trousers and a pair of black heels
The British actress, who recently tied the knot with musician Joe Jonas, left her long blonde hair loose and sported cat's eye-shaped sunglasses
Chastain joins the X-Men cast for the first time as an alien shapeshifter who is able to manipulate the Phoenix.
The actress flashed some leg in the ankle-length dress that had short sleeves, a turtleneck and a thigh-high split.
She stepped out in matching red heels and wore large black-framed sunglasses.
The Miss Sloane and Molly's Game star made sure to stay hydrated with a plastic bottle of water and wore a black cast on her right forearm.
Unmissable: Chastain, 42, who joins the X-Men cast for the first time as an alien shapeshifter who is able to manipulate the Phoenix, wore a scarlet dress and matching heels