Reese Witherspoon looked effortlessly chic on Thursday as she joined a dapper Will Ferrell at the You’re Cordially Invited UK special screening in London.

The actress, 48, slipped into a smart black thigh-split dress with matching blazer as she posed with the actor, 57, at the event held at the London Palladium.

Reese’s dress featured a lace top half and a belt that perfectly cinched her in at the waist.

She teamed her elegant dress and blazer combo with matching black heels and diamond drop earrings.

Meanwhile, Will cut a sharp figure in a dark grey suit which he teamed with a grey shirt and burgundy tie.

The pair, who star together in the comedy, looked in great spirits as they smiled for snaps before posing next to a huge wedding cake split in half. 

Reese Witherspoon looked effortlessly chic on Thursday as she joined a dapper Will Ferrell at the You’re Cordially Invited UK special screening in London

The actress, 48, slipped into a smart black thigh-split dress with matching blazer as she posed with the actor, 57, at the event held at the London Palladium

Reese (L) and Will (R) embark on a wacky bride war over a double-booked wedding venue in their new movie, You’re Cordially Invited [pictured]

In the film, Reese plays Black Sheep Productions producer Margot, who volunteers to plan the nuptials of her baby sister Neve (Meredith Hagner) and her groom Dixon (Jimmy Tatro).

Will plays avid baker Jim, who’s excited to plan the wedding of his daughter Jenni (Geraldine Viswanathan) and her groom Oliver (Stony Blyden).

Margot and Jim proceed to book their ceremonies at the same resort on a remote Carolina coast island on the same day, June 1.

But no one discovers the clerical error until they try checking into the venue with flummoxed concierge Leslie (Jack McBrayer), who offers no solution but to somehow share it.

You’re Cordially Invited – premiering January 30 on Prime Video – also features Celia Weston, Fortune Feimster, Bobby Moynihan, Wyatt Russell, Leanne Morgan, Rory Scovel, Ramona Young, and a cameo from retired NFL star Peyton Manning.

Reese and Will previously acted together in sketches like The Fishy Little Mermaid and Celebrity Jeopardy when she hosted NBC’s Saturday Night Live back in 2001. 

The You’re Cordially Invited screening attracted a plethora of UK stars, including Kym Marsh and daughter Emilie Mae Cunliffe, who dressed to impress for the evening.

While Kimberley Garner flashed her toned abs in a white crop top worn beneath a grey trouser suit.

Reese’s dress featured a lace top half and a belt that perfectly cinched her in at the waist

Meanwhile, Will cut a sharp figure in a dark grey suit which he teamed with a grey shirt and burgundy tie

The actors were seen in conversation as they took to the cream carpet

The pair, who star together in the comedy, looked in great spirits as they smiled for snaps before posing next to a huge wedding cake split in half

Reese was seen taking Will’s hand as they promoted their film

The stunner looked on fine form as she posed next to a huge model cake 

The star cut a very elegant figure at the event

Will and Reese were all smiles as they posed alongside the film’s director Nicholas Stoller

(L-R) Conor Welch, Will, Reese, Nicholas, Alex Murphy and Jessica Elbaum posed at the UK screening

Read More Reese Witherspoon calls Jennifer Aniston her ‘BFF’ as she shares set pH๏τos from The Morning Show

Love Island winners Sanam Harrinanan and Kai Fagan, who are set to tie the knot in August, pulled out all the stops in their stylish ensembles.

Meanwhile, Sophie Hermann turned heads in a bright purple gown, while Jess Impiazzi flashed her pins in a sparkly silver mini dress.

Elsewhere, Love Island’s Jessy Potts looked lovely in a white mini dress with lace sleeves.

While Michelle Heaton was glam in a chic ɴuᴅᴇ gown. 

Last week, the trailer for Amazon Prime’s upcoming rom com starring the Hollywood A-listers dropped. 

Fans reacted with positivity in the comments section on X (formerly Twitter) and YouTube. 

The You’re Cordially Invited screening attracted a plethora of UK stars, including Kym Marsh and daughter Emilie Mae Cunliffe, who dressed to impress for the evening

While Kimberley Garner flashed her toned abs in a white crop top worn beneath a grey trouser suit

Love Island winners Sanam Harrinanan and Kai Fagan, who are set to tie the knot in August, pulled out all the stops in their stylish ensembles

Gabriela Gregorian and Abbie Quinnen looked glam as they posed for snaps

Connor Welch posed in a tan blazer, while Kori Sampson looked smart in a black coat

Meanwhile, Sophie Hermann turned heads in a bright purple gown

Jess Impiazzi flashed her pins in a sparkly silver mini dress

Alex Murphy looked stylish in a fitted black dress, while Lauren Levy slipped into a black blazer and coordinating leather skirt

Elsewhere, Love Island’s Jessy Potts looked lovely in a white mini dress with lace sleeves

While Michelle Heaton was glam in a chic ɴuᴅᴇ gown

Victoria Brown caught the eye in a bright pink gown at the screening

Most of the comments kept it short and to the point, commenting, ‘Looks good,’ or ‘Will be watching.’ 

Others said it ‘sounds hilarious’ and praised various members of the cast. 

X User @Sania_Javedd, however, got deeper with her comment. ‘With Will Ferrell’s signature humor and Reese Witherspoon’s charm, You’re Cordially Invited is shaping up to be an unforgettable comedy.

‘I’m excited to see these two powerhouse actors team up this movie is definitely going to bring the laughs when it hits Prime Video on January 30th!’