The teenager joined her dad Daniel Moder on the Croisette for a screening of Sean Penn’s new film Flag Day.
Daniel, who was cinematographer on the movie, looked smart in traditional navy and white as the pair walked the carpet together.
But Hazel kept things more casual in a pale lace dress and with her blonde hair pulled into a loose ponytail. She accessorised with flat black shoes and a simple gold necklace.
It was a rare sighting of the 16-year-old, as her parents usually keep her and her brothers Phinnaeus and Henry out of the spotlight. However, the teenager appeared to be perfectly comfortable as she posed for photographs alongside her dad.
Pretty Woman star Julia did not join the pair at the glitzy event in France.
The actor tied the knot with Daniel in 2002 and they welcomed twins Hazel and Phinnaeus in 2004, with Henry following in 2007.
The family is notoriously private but earlier this year the Erin Brockovich star did mark her and Daniel’s anniversary with a rare selfie.
The snap shared on Instagram showed the couple with their arms around each other on the beach.
Daniel had a towel wrapped around him while Julia was clad in a flowery shirt, orange cap and sunglasses.
“19 years. Just getting started!” she captioned the sweet shot.
Flag Day was directed by and stars Penn, and follows the daughter of a con artist who is struggling to accept her dad’s past.
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