She returned to the Cannes red carpet in May after she welcomed her second child with her film director beau Guillaume Canet, 43, in March earlier this year.
And Marion Cotillard looked sensational three months after giving birth as she attended the 31st Cabourg Film Festival in Cabourg, France on Saturday.
Leading the glamour, the Oscar winner, 41, showcased her slender figure in the pleated dress which was cinched at the waist.
Scroll down for video
Dazzling: Marion Cotillard, 41, wore a metallic gold and black dress as she attended the 31st Cabourg Film Festival red carpet in Cabourg, France on Saturday
The Allied actress dazzled in the spotlight as her garment was edged with a glittering gold fabric.
Adding to her glamour, the French born beauty accentuated her age-defying features with a light touch of make-up.
Walking with confidence, the BAFTA winner sashayed across the red carpet in sky-scraper stilettos which added to her statuesque height.
Great fun! Marion, 41, was having a wonderful time at the red carpet event as she couldn’t stop giggling as she promoted her latest film
Pleased as punch, Marion was in high spirits as she couldn’t stop giggling when she promoted film Ismael’s Ghosts.
The French flick tells the story of a filmmaker who is faced with the return of a former flame just as he is about to start shooting a new film.
Marion had returned to the red carpet in May when she put on a dazzling appearance at the 70th Cannes Film Festival.
Oh dear: She proved even A-listers can have an off day as she stepped out on the beach with lipstick stained teeth and windswept hair on Thursday
Wow: But the French born beauty was back on top form on Friday when she accentuated her age-defying features with a light touch of make-up
In her personal life, the La Vie en rose star gave birth to her first daughter Louise in March earlier this year.
The A-lister couldn’t contain her excitement when she broke the news she was pregnant in September 2016 on Instagram.
At the time, Marion wrote: ‘Many years ago, I met the man of my life, father of our son and of the baby we are expecting.
‘He is my love, my best friend, the only one I need.’
Standing tall! The BAFTA winner sashayed across the red carpet in sky-scraper stilettos which added to her statuesque height
Sensational: The Allied actress dazzled in the spotlight as her garment was edged with a glittering gold fabric
The loved-up couple have gone from strength to strength since they started dating in 2007.
Insisting they are not married, Marion referred to the screenwriter as her ‘boyfriend’ in a series of interviews in 2014.
The happy lovebirds sparked marriage speculation after the Golden Globe winner was seen wearing a diamond solitaire on her left hand.
Marion and Guillaume also raise their five-year-old son Marcel together.
People pleaser! She was happy to greet fans who were waiting at the side of the red carpet
Pleased as punch: The star was signed autographs for followers who gazed on her adoringly