The Cannes film festival brings some of the most flamboyant red carpet attire to its annual event. But getting the delicate balance of flounce and French chic just right is a tricky challenge.

While some outfits would have happily hung among couture collections, others were reminiscent of Grammy costumes gone wrong.

Here are our picks of the best and worst from the 69th annual Cannes Film Festival.

Best dressed

Jessica Chastain

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Jessica Chastain. Photo / Getty
Jessica Chastain. Photo / Getty

She wasn't the only one in yellow, but she wins our vote for the exquisite fit of her dress, and the colour.

Bianca Balti

Biana Balti. Photo / Getty
Biana Balti. Photo / Getty

Italian model Biana Balti displays the perfect mix of French chic and flounce in this form fitting dress offset by bold detailing and soft tulle train.

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Kendall Jenner

Kendall Jenner. Photo / Getty
Kendall Jenner. Photo / Getty

Wearing little more than black swirls and sparkles, it was all about looking fierce for 20-year-old model, Kendall Jenner.

Gianna Simone

Gianna Simone. Photo / Getty
Gianna Simone. Photo / Getty

On paper, this dress reads as a tacky number for the Grammys, but Simone makes the black and gold work for Cannes.

Blake Lively

Blake Lively. Photo / Getty
Blake Lively. Photo / Getty

Sporting a hint of a baby bump, pregnant Lively stunned in turquoise sparkles.

Lily Donaldson

Lily Donaldson. Photo / Getty
Lily Donaldson. Photo / Getty

With a nod to the 90s, model Lily Donaldson gets points for a dress that sparked debate on the end of the push-up bra.

Amal Clooney

Amal Clooney. Photo / Getty
Amal Clooney. Photo / Getty

She may have an unfair advantage with George on her arm but it's the buttery hue, subtle Grecian twists and asymmetric detailing that make this look a winner for Amal.

Worst dressed

Araya A. Hargate

Araya A. Hargate. Photo / Getty
Araya A. Hargate. Photo / Getty

Actress Araya A. Hargate recreates the Barbie cake from your fifth birthday.

Lady Victoria Hervey

Lady Victoria Hervey. Photo / Getty
Lady Victoria Hervey. Photo / Getty

Lady Victoria Hervey reiterates that Game of Thrones costumes do not translate to the red carpet.

Susan Sarandon

Susan Sarandon. Photo / Getty
Susan Sarandon. Photo / Getty

Susan Sarandon opened a door that should have remained firmly closed: Her wardrobe in the 80s.

Sonam Kapoor

Sonam Kapoor. Photo / Getty
Sonam Kapoor. Photo / Getty

Is there such a thing as too much, even at Cannes? Yes. This is it.

Victoria Beckham

Victoria Beckham. Photo / Getty
Victoria Beckham. Photo / Getty

French chic, check. Iumpsuit, check. Monochrome, check. But her pant legs are too long and we've seen Beckham in far better.

Eva Longoria

Eva Longoria. Photo / Getty
Eva Longoria. Photo / Getty

We have no doubt it was expensive, and the skirt is fantastic, but neither of these things help the fact that it looks like Longoria is wearing a jumper.

Elena Lenina

Elena Lenina. Photo / Getty
Elena Lenina. Photo / Getty

While we love the colour, you know it's really over when even Lady Gaga has moved on from galactic-inspired style.