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Jean Harlow - 'Dinner at Eight' (1933) -

Hollywood's original blonde bombshell, Jean Harlow wore this caped silk slip dress and white fur in the iconic 'Dinner at Eight.'

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Hilary Duff - 'A Cinderella Story' (2004) -

At this moment, every teen girl in 2004 wanted to be Hilary Duff. And this princess gown had a lot to do with it. But Chad Michael Murray helped too!

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Katharine Hepburn - 'Bringing Up Baby' (1938) -

Katharine Hepburn's golden lamé gown and sheer veil with gold borders will forever be associated with this film. Truly unforgettable.

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Anne Hathaway - 'The Devil Wears Prada' (2006) -

One of the outfits that stood out most from the movie, post-makeover of course, is the black silk Valentino gown Anne Hathaway's character wears to Runway's charity gala. A timeless look!

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Judy Garland - 'The Wizard of Oz' (1939) -

There's no place like home, and there's certainly no dress like this one! Dorothy's blue and white gingham dress is to this day an iconic part of cinematic history.

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Billie Burke - 'The Wizard of Oz' (1939) -

And, of course, we couldn't forget Glinda the Good Witch! That pink tulle dress was made by costume designer Gilbert Adrian. It was first worn by Jeanette MacDonald in 1936's 'San Francisco,' but minor changes were made.

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Isla Fisher - 'Confessions of a Shopaholic' (2009) -

This dress was colorful, fun, and made us all want to go shopping, just like Isla Fisher's character!

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Vivien Leigh - 'Gone with the Wind' (1939) -

Vivien Leigh wore several stunning outfits as Scarlett O'Hara in 'Gone with the Wind.' However, her emerald-green velvet dressing gown is one of the most striking looks.

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Elizabeth Taylor - 'A Place in the Sun' (1951) -

Known for her glamorous style, Elizabeth Taylor stole the scene in this strapless tulle ball gown with floral appliqué.

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Marilyn Monroe - 'Gentlemen Prefer Blondes' (1953) -

One of Marilyn Monroe's most famous looks, who will ever forget her rendition of 'Diamonds Are a Girl's Best Friend' in this hot-pink strapless gown. Oh, and let's not ignore the gloves and the diamonds.

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Marilyn Monroe - 'The Seven Year Itch' (1955) -

One of the most iconic images in pop culture, Monroe went down in history when she wore this pleated white halter dress over a subway grate.

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Audrey Hepburn - 'Breakfast at Tiffany's' (1961) -

The moment Audrey Hepburn wore her black evening gown and pearls, this sophisticated look became an instant classic.

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Elizabeth Taylor - 'Cleopatra' (1963) -

Together with Taylor's budding romance with co-star Richard Burton, and the elaborate set and overextended budget, the costume design was one of the standout features of this production. Especially this 24-karat gold headdress and cape!

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Julie Andrews - 'Mary Poppins' (1964) -

Julie Andrews' Mary Poppins has a grace and elegance to her, which this dress manages to represent so well.

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Julia Roberts - 'Pretty Woman' (1990) -

There are too many fashion moments in 'Pretty Woman' to count. But if we had to choose one of Vivian's most glamorous ensembles, then it's this red off-the-shoulder gown.

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Audrey Hepburn - 'My Fair Lady' (1964) -

Another Audrey Hepburn–approved dress is this frilly lace ensemble in 'My Fair Lady.' From the high collar to the ribbon accents, it's truly stunning.

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Diana Ross - 'Mahogany' (1975) -

Diana Ross wore a sequence of gorgeous gowns in 'Mahogany.' But this peach-colored gown with embroidery and embellishments is remembered to this day.

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Carrie Fisher - 'Star Wars Episode IV: A New Hope' (1977) -

With the draping fabric, billowing sleeves, and high neck, Princess Leia incorporated some of the biggest trends of the '70s.

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Olivia Newton-John - 'Grease' (1978) -

Olivia Newton-John wore a pale yellow spaghetti strap dress in the movie's famous hand jive dance scene, which we remember to this day.

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Jennifer Grey - 'Dirty Dancing' (1987) -

Nobody puts Baby in the corner! That light pink A-line dress just about stole the show. It's all just perfection!

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Kate Winslet - 'Titanic' (1997) -

Rose's beaded formal evening gown looks just as stunning during a formal dinner as it does while dancing the jig in the lower deck. Truly unforgettable.

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Fay Wray - 'King Kong' (1933) -

While the character might have been under distress, the actress' elegant white gown became a trademark of the franchise ever since.

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Lisa Kudrow and Mira Sorvino - 'Romy and Michele's High School Reunion' (1997) -

Romy and Michele's pink and blue dresses remain some of the most unforgettable looks in comedy history. Name a more iconic duo!

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Reese Witherspoon - 'Legally Blonde' (2001) -

Elle Woods is here to remind us that pink is always the way to go. The hot pink halter top dress she wears in her Harvard Law audition tape is truly memorable.

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Jennifer Lopez - 'Maid in Manhattan' (2002) -

After being mistaken for a wealthy hotel guest, instead of a maid who works in the hotel, Jennifer Lopez's character rocks this stunning evening gown. What a makeover!

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Grace Kelly - 'To Catch a Thief' (1955) -

While portraying a wealthy heiress on vacation in the South of France, Grace Kelly looked the part in this white strapless chiffon evening gown.

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Rita Hayworth - 'Gilda' (1946) -

To play a pinup in this film, Rita Hayworth wore this unforgettable strapless black satin gown with matching elbow-length gloves. The film made a true star out of Hayworth.

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Kirsten Dunst - 'Marie Antoinette' (2006) -

When Sofia Coppola set out to recreate the French aristocratic court, she got costume designer Milena Canonero to imagine the wardrobe of the controversial queen. Canonero won an Oscar for her work, which says it all.

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Emma Watson - 'Beauty and the Beast' (2017) -

Emma Watson's Bella looked nearly identical to the animated Disney princess in this yellow gown. Just perfection!

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Lily James - 'Cinderella' (2015) -

Designed by Sandy Powell, the skirt of the dress worn by Lily James had eight layers, and the outer layer was embroidered with over 111,000 Swarovski crystals. Impressive!

Sources: (Harper's Bazaar) (Cosmopolitan) 

See also: Iconic on-screen jewelry moments

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