Emily Blunt and Cillian Murphy perform at the Oppenheimer premiere

Emily Blunt and Cillian Murphy perform at the Oppenheimer premiere in Paris

Emily Blunt looked as glamorous as ever while dating the elegant Cillian Murphy at the Oppenheimer premiere in Paris on Tuesday.

The co-stars both put on a very sophisticated performance as they joined their peers at Cinema Le Grand Rex to celebrate their much-anticipated biopic.

Emily, 40, cut an elegant figure in a green satin dress with padded shoulders and a collared neckline and ensured she drew attention.

She added a few inches to her body with a pair of silver pointed-toe stilettos and let her outfit speak for itself by simply complementing it with drop earrings.

The Mary Poppins star, who plays physicist Oppenheimer’s wife Kitty in the bio-thriller, has styled her golden tresses into glamorous waves.

Sophisticated: Emily Blunt looked as glamorous as ever when she joined the preppy Cillian Murphy at the Oppenheimer premiere in Paris on Tuesday Smart: Cillian Murphy looked in good spirits as he celebrated the release of his latest film

Sophisticated: Emily Blunt looked as glamorous as ever when she joined the preppy Cillian Murphy at the Oppenheimer premiere in Paris on Tuesday

Wow!  Emily caused quite a stir in her lively ensemble as she celebrated her much-anticipated biopic with her cast at Cinema Le Grand Rex

Wow! Emily caused quite a stir in her lively ensemble as she celebrated her much-anticipated biopic with her cast at Cinema Le Grand Rex

She accentuated her distinctive features with mascara and a touch of pink lipstick while posing for the cameras.

Meanwhile, Irish actor Cillian, 47, cut a dapper figure in a navy suit consisting of tailored trousers and a fitted blazer.

He styled his sleek ensemble with a beige shirt and matching tie, while completing the look with black patent boots.

The Peaky Blinders star styled her dark locks in a center part while smiling for photos alongside her A-list co-stars.

Cillian plays Dr. J. Robert Oppenheimer, the ‘father of the atomic bomb’ in the £81million blockbuster directed by Christopher Nolan.

Oppenheimer was the head of the laboratory that designed the atomic bomb during World War II as part of the top-secret Manhattan Project.

The film is based on the 2006 book American Prometheus: The Triumph And Tragedy Of J. Robert Oppenheimer by Kai Bird and Martin J. Sherwin.

The Pulitzer Prize-winning book details Oppenheimer’s personal life and his time leading the Manhattan Project in the early and mid-1940s.

Gorgeous: Emily, 40, cut an elegant figure in a green satin dress with padded shoulders and a collared neckline and ensured she drew attention

Gorgeous: Emily, 40, cut an elegant figure in a green satin dress with padded shoulders and a collared neckline and ensured she drew attention

1689104276 273 Emily Blunt and Cillian Murphy perform at the Oppenheimer premiere

Elegant: She accentuated her distinctive features with mascara and a touch of pink lipstick while posing for the cameras

A real eye-catcher: She added a few inches to her figure with a pair of silver pointed-toe stilettos and let her outfit speak for itself by simply complementing them with teardrop earrings

A real eye-catcher: She added a few inches to her figure with a pair of silver pointed-toe stilettos and let her outfit speak for itself by simply complementing them with teardrop earrings

Glamorous: The Mary Poppins star, who plays physicist Oppenheimer's wife Kitty in the bio-thriller, has had her golden tresses styled into glamorous waves

Glamorous: The Mary Poppins star, who plays physicist Oppenheimer’s wife Kitty in the bio-thriller, has had her golden tresses styled into glamorous waves

Polite: Meanwhile, Irish actor Cillian, 47, cut a suave figure in a navy suit consisting of tailored trousers and a fitted blazer

Polite: Meanwhile, Irish actor Cillian, 47, cut a suave figure in a navy suit consisting of tailored trousers and a fitted blazer

Leading Actor: Cillian plays Dr.  J. Robert Oppenheimer, the 'father of the atomic bomb' in the £81million blockbuster directed by Christopher Nolan

Leading Actor: Cillian plays Dr. J. Robert Oppenheimer, the ‘father of the atomic bomb’ in the £81million blockbuster directed by Christopher Nolan

Thriller: Oppenheimer (pictured: Cillian as physicist) was the director of the laboratory that designed the atomic bomb as part of the Manhattan Project during World War II

Thriller: Oppenheimer (pictured: Cillian as physicist) was the director of the laboratory that designed the atomic bomb as part of the Manhattan Project during World War II

Elegant: Also present at the premiere was Matt Damon, who looked as suave as ever during the performance

Elegant: Also present at the premiere was Matt Damon, who looked as suave as ever during the performance

Character: Matt plays Lt. Gen. Leslie Groves - an engineer who led the Manhattan Project Real Life: Groves (pictured in the 1940s) oversaw the construction of the Pentagon and directed the top-secret Manhattan Project that developed the atomic bomb during World War II.  Oppenheimer was the head of the lab that designed the bombs

Character: Matt plays Lt. Gen. Leslie Groves (right) – an engineer who led the Manhattan Project

Stylish: Matt, 52, cut a smart figure in a smart navy suit which he paired with a plain white T-shirt and brown boots

Stylish: Matt, 52, cut a smart figure in a smart navy suit which he paired with a plain white T-shirt and brown boots

Family: Matt's daughters Isabella, 17, Gia, 14, and Stella, 12, were also present, as was his wife Luciana Barroso's daughter, Alexia, from her previous relationship with Arbello Barroso

Family: Matt’s daughters Isabella, 17, Gia, 14, and Stella, 12, were also present, as was his wife Luciana Barroso’s daughter, Alexia, from her previous relationship with Arbello Barroso

The film is set to hit theaters on July 21 and a bevy of the star cast flocked to Paris to celebrate its release on Tuesday.

Also present at the premiere was Matt Damon, who plays Lt. Gen. Leslie Groves – an engineer who led the Manhattan Project.

Matt, 52, cut a dapper figure in a smart navy suit, which he paired with a plain white t-shirt and brown boots.

He styled his silver tresses slicked back and appeared to be in a happy mood as he smiled and waved at photographers.

Matt has also been lovingly supported by his daughters Isabella, 17, Gia, 14, and Stella, 12, who he shares with Luciana Barroso.

Luciana’s daughter Alexia, 24, from her previous relationship with Arbello Barroso, also smiled for group photos with her sisters.

Co-stars: Matt styled his silver locks slicked back and appeared to be in a happy mood as he shared smiles with Robert Downey Jr., Cillian Murphy and Emily Blunt

Co-stars: Matt styled his silver locks slicked back and appeared to be in a happy mood as he shared smiles with Robert Downey Jr., Cillian Murphy and Emily Blunt

Family: (LR) Alexia, Isabella, Gia and Stella all seemed excited to be at the premiere and showed their support for Matt

Family: (LR) Alexia, Isabella, Gia and Stella all seemed excited to be at the premiere and showed their support for Matt

Smart: Robert Downey Jr also looked as smart as ever in a navy suit, which he paired with a matching satin tie and black shoes

Smart: Robert Downey Jr also looked as smart as ever in a navy suit, which he paired with a matching satin tie and black shoes

A journey back in time: Robert Downey Jr. plays Lewis Strauss Crucial: Lewis was an important figure in the development of nuclear weapons

A trip down memory lane: Robert (pictured April 2018) joins the cast to play Lewis Strauss (pictured right in 1954), who served two terms on the US Atomic Energy Commission

Cast: Trond Fausa Aurvag, Matt Damon, Robert Downey Jr., Cillian Murphy, Emily Blunt, Jason Clarke, Christopher Nolan and his wife Emma Thomas and Charles Roven all posed together

Cast: Trond Fausa Aurvag, Matt Damon, Robert Downey Jr., Cillian Murphy, Emily Blunt, Jason Clarke, Christopher Nolan and his wife Emma Thomas and Charles Roven all posed together

Robert Downey Jr. also looked as dapper as ever in a navy suit, which he paired with a matching satin tie and black shoes.

The 58-year-old Hollywood star wore square, black-tinted glasses and looked in fine shape as he playfully posed for the cameras.

He portrays Lewis Strauss, who served two terms on the US Atomic Energy Commission.

The cast also includes Florence Pugh – who plays Oppenheimer’s mistress – Kenneth Branagh, Rami Malek and Josh Hartnett.

Gary Oldman is also said to have a cameo as President Truman in the epic.

Truman met Oppenheimer after the bombs were used in 1945 that killed 200,000 people, and Oppenheimer said he felt like he had blood on his hands.

Friends: Matt was seen waving to someone to join the group while everyone grinned to take photos together

Friends: Matt was seen waving to someone to join the group while everyone grinned to take photos together

Cast: Matt, Robert, Cillian and Emily joined director Christopher Nolan to celebrate their new release

Cast: Matt, Robert, Cillian and Emily joined director Christopher Nolan to celebrate their new release

Surprise!  Robert Downey Jr. recently shared a snap of himself with Matt, Cillian, Emily and John Krasinski and hinted at a possible cameo for Emily's partner in the film

Surprise! Robert Downey Jr. recently shared a snap of himself with Matt, Cillian, Emily and John Krasinski and hinted at a possible cameo for Emily’s partner in the film

Real Life: The film is based on the 2006 book American Prometheus: The Triumph And Tragedy Of J. Robert Oppenheimer (Oppenheimer is pictured)

Real Life: The film is based on the 2006 book American Prometheus: The Triumph And Tragedy Of J. Robert Oppenheimer (Oppenheimer is pictured)

Highly-anticipated, Oppenheimer is slated to hit theaters on July 21 – an epic blockbuster day that will also see the Barbie movie hit theaters

Highly-anticipated, Oppenheimer is slated to hit theaters on July 21 – an epic blockbuster day that will also see the Barbie movie hit theaters

Truman had little use for such pangs of conscience and dismissed him as a “crybaby scientist”.

The cast have been busy promoting the film together for the past few weeks and Robert Downey Jr – who plays the lead – Lewis Strauss recently shared a snap of them all.

He posted the picture of himself with Matt, Cillian, Emily and John Krasinski and even hinted at a possible cameo for Emily’s husband.

“I’m teaming up with my fellow Oppenheimer cast members…Wait, is this a Krasinski photo bombshell or maybe a surprise appearance???” He captioned a photo he shared to his Instagram on Sunday.