Photo: Rex
The Oscar-winner attended the show wearing a slinky long-sleeved dress, teamed with black peep toe shoes, a black box clutch and a silver cuff and earrings.
We found ourselves wondering why Kate had played it quite so safe at an event titled 'Impact' and we realised that if she had worn anything more racy or quirky than this she might well have been mistaken for an exhibit!
Impact: 50 Years of the CFDA celebrates the Council of Fashion Designers of America through around 100 garments and accessories designed by the CFDA's "most impactful creators of the last fifty years".
Just a few of the big names with pieces included in the exhibition are:
Halston, Norman Norell, Pauline Trigère, Geoffrey Beene, Bill Blass, Rudi Gernreich, Bob Mackie, James Galanos, Diane von Furstenberg, Oscar de la Renta, Marc Jacobs, Donna Karan, Ralph Lauren, Calvin Klein, Tom Ford, Michael Kors, Tommy Hilfiger, Isabel Toledo, Rodarte, and Proenza Schouler.
Photo: Getty
Shop for more long sleeved LBD's similar to Kate Winslet's:
- Sense and Sensibility premiere, London, 1996<p> For one of her first forays on to the red carpet, Kate made a rather large fashion faux pas in a disastrous see-through lace jumpsuit.</p>

- The 68th Academy Awards, LA, 1996<p> Kate was fashion-forward in choosing a pink, corseted Vivienne Westwood for the Oscars way back in 1996… But we're not loving the ageing red stole.</p>

- 71st Academy Awards, LA, 1998<p> Kate followed the folklore fashion route in forest green at the Oscars in 1998.</p>

- At her wedding to Jim Threapleton, Reading, 1998<p> After saying "I do" to her first husband in 1998, Kate showed off her boho bridal look.</p>

- At Heathrow Airport, London, 1999<p> Who would have known from this mules, highly-waisted combats and crop top combo that Kate was to become such a stylish red carpet star?</p>

- London premiere of Holy Smoke, 2000<p> The early days were peppered with the odd fashion disaster, and this snakeskin trousers and leather jacket ensemble was definitely one of them.</p>

- Screen Actors Guild Awards, LA, 2001<p> A vampy leather halter dress ensured Kate stood out at the SAG Awards. Our tip? Ditch the shawl.</p>

- Screen Actors Guild Awards, LA, 2001<p> A vampy leather halter dress ensured Kate stood out at the SAG Awards. Our tip? Ditch the shawl.</p>

- Evening Standard Awards Ceremony, London, 2002<p> Disaster of disasters! Kate went sans bra at this London bash - and paid for it when the flashbulbs saw straight through her top the next day.</p>

- The Bafta Awards, London, 2002<p> A metallic-embellished shift worked wonders at the Baftas in 2002.</p>

- 75th Academy Awards, LA, 2002<p> Hello, world! Everybody sat up and took notice when Kate totally wowed at the Oscars 2002 in an amazing red Ben de Lisi dress.</p>

- The 61st Venice Film Festival, Venice, 2004<p> For the screening of <em>Finding Neverland</em>, Kate Winslet aptly opted for a whimsical mint-green frock by Alice Temperley.</p>

- Finding Neverland premiere, LA, 2004<p> You can never go wrong with a sparkly little LBD...</p>

- Finding Neverland premiere, London, 2004<p> A baby-blue Ben de Lisi halterneck gown was the perfect choice for the London premiere of <em>Finding Neverland</em>.</p>

- Glamour Women of the Year Awards, London, 2004<p> Kate had all the mauves in a zip-front maxi at the Glamour Women of the Year Awards.</p>

- Screen Actors Guild Awards, LA, 2005<p> Ice queen! Kate was cool and stylish in a satin corseted dress at the SAGS 2005.</p>

- The 64th Annual Golden Globe Awards, LA, 2007<p> Kate was a cream dream in this feminine and floaty strapless Azzaro gown.</p>

- 77th Academy Awards, LA, 2005<p> There was something of the medieval in Kate's Oscars 2005 cornflower-blue gown.</p>

- The Baftas, London, 2007<p> Ms Winslet turned to (yes, you guessed it) Ben de Lisi for her gorgeous strapless Baftas 2007 gown, which featured a stunning embellished waist.</p>

- 79th Academy Awards, LA, 2007<p> This bias-cut Valentino gown with a floor-length drape hit all the right notes at the Oscars in 2007.</p>

- The Reader film premiere, New York, 2008<p> Kate was a total bombshell when she stepped out at <em>The Reader</em> premiere in New York with a soft tan and a charcoal-coloured Herve Leger bandage dress.</p>

- Revolutionary Road film premiere, LA, 2008<p> Kate's best look ever? We think so. She's young, sexy, fresh and fabulous in this Balmain bodycon dress with a crystal-studded strap teamed with Louboutin heels.</p>

- 15th Annual Screen Actors Guild Awards, LA, 2009<p> This electric-blue Narciso Rodriguez figure-hugger is another of our favourite Kate Winslet looks.</p>

- The Baftas, London, 2009<p> We love the kooky bustline on this Zac Posen halterneck.</p>

- The 66th Annual Golden Globes Awards, LA, 2009<p> Black magic: An extremely chic Yves Saint Laurent floor-sweeper with an art deco waist detail was picture-perfect at the 2009 Golden Globes.</p>

- 81st Annual Academy Awards, LA, 2009<p> Kate chose Yves Saint Laurent for her winning moment at the Oscars in 2009 when she picked up Best Actress for <em>The Reader</em>.</p>

- 82nd Annual Academy Awards, LA, 2010<p> The actress returned to Yves Saint Laurent for the 2010 Oscars, this time choosing a metallic corset and silk oyster-hued skirt.</p>

- Mildred Pierce premiere, 68th Venice Film Festival, Venice, 2011<p> Kate made newspaper headlines - for all the right reasons - when she worked this Stella McCartney 'body sculpture' dress in Venice.</p>

- Carnage film photocall, 68th Venice Film Festival, Venice, 2011<p> In September of 2011, Kate opted for a fashion-forward LBD and jacket combination, both by Helmut Lang.</p>

- Carnage film premiere, 68th Venice Film Festival, Venice, 2011<p> An olive-green body-skimming number by Victoria Beckham had jaws dropping at the <em>Carnage</em> premiere in Venice.</p>

- 63rd Annual Primetime Emmy Awards, LA, 2011<p> Lady in red: Kate was a vision in her V-necked Elie Saab frock at the 2011 Emmy Awards.</p>


Actress Kate Winslet opted for a classic little black dress as she attended the Impact: 50 Years of the CFDA show ahead of New York Fashion Week on Thursday night (9 Feb).