"I think it was very brave of her to articulate it like that," Paltrow told ET at the La Mer Celebrates 50 Years of an Icon event. "It's fascinating because part of the issue is that women don't feel entitled to talk about a gender gap."
On Tuesday morning, Lena Dunham and Jenni Konner's Lenny newsletter published an essay penned by Lawrence, where she wrote about getting paid less than her male co-stars in American Hustle.
"When the Sony hack happened and I found out how much less I was being paid than the lucky people with dicks, I didn't get mad at Sony. I got mad at myself," the 25-year-old star wrote. "I failed as a negotiator because I gave up early. I didn't want to keep fighting over millions of dollars that, frankly, due to two franchises, I don't need."
Photos of Gwyneth Paltrow from over the years:
Gwyneth Paltrow through the years
Gwyneth Paltrow praises Jennifer Lawrence for demanding equal pay: 'It was very brave'
Gwyneth Paltrow arrives at the amfAR Inspiration Gala at Milk Studios on Thursday, Oct. 29, 2015, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0194 -- Pictured: Actress Gwyneth Paltrow on January 14, 2015 -- (Photo by: Douglas Gorenstein/NBC/NBCU Photo Bank via Getty Images)
CRUEL DOUBT -- Air Date 05/17/1992 -- Pictured: Gwyneth Paltrow as Angela Pritchard -- Photo by: Gary Null/NBCU Photo Bank
Gwyneth Paltrow holds a phone in a scene from the film 'Moonlight And Valentino', 1995. (Photo by Gramercy Pictures/Getty Images)
NEW YORK CITY - MARCH 29: Actress Gwyneth Paltrow attends the 'Jefferson in Paris' New York City Premiere on March 29, 1995 at the Paris Theatre in New York City. (photo by Ron Galella, Ltd./WireImage)
Actress Gwyneth Paltrow attends the Academy of Motion Picture Arts and Sciences private luncheon and viewing of the "Hollywood Costume" exhibition at the Wilshire May Company building on Wednesday, Oct. 8, 2014 in Los Angeles. (Photo by Dan Steinberg/Invision/AP)
BEVERLY HILLS, CA - JANUARY 11: In this handout photo provided by NBCUniversal, Presenter Gwyneth Paltrow speaks onstage during the 72nd Annual Golden Globe Awards at The Beverly Hilton Hotel on January 11, 2015 in Beverly Hills, California. (Photo by Paul Drinkwater/NBCUniversal via Getty Images)
Gwyneth Paltrow arrives at the 2014 amfAR Inspiration Gala at Milk Studios on Wednesday, Oct. 29, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)
HOLLYWOOD, CA - SEPTEMBER 05: Actress Gwyneth Paltrow arrives at Hollywood Unites For The 4th Biennial Stand Up To Cancer (SU2C), A Program Of The Entertainment Industry Foundation (EIF) at Dolby Theatre on September 5, 2014 in Hollywood, California. (Photo by Barry King/FilmMagic)
NEW YORK, NY - FEBRUARY 12: Actress Gwyneth Paltrow attends the Boss Women fashion show during Mercedes-Benz Fashion Week Fall 2014 at Skylight Limited on February 12, 2014 in New York City. (Photo by Craig Barritt/Getty Images for Mercedes-Benz Fashion Week)
NEW YORK, NY - FEBRUARY 10: Gwyneth Paltrow attends The Great American Songbook event honoring Bryan Lourd at Alice Tully Hall on February 10, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Lincoln Center)
BERLIN, GERMANY - FEBRUARY 01: Gwyneth Paltrow attends the 49th Golden Camera Awards at Tempelhof Airport on February 1, 2014 in Berlin, Germany. (Photo by Luca Teuchmann/WireImage)
LOS ANGELES, CA - JANUARY 10: Actress Gwyneth Paltrow, wearing Diane Von Furstenberg, attends Diane Von Furstenberg's Journey of A Dress Exhibition Opening Celebration at May Company Building at LACMA West on January 10, 2014 in Los Angeles, California. (Photo by Donato Sardella/Getty Images for Diane Von Furstenberg)
LONDON, ENGLAND - DECEMBER 02: Gwyneth Paltrow poses in the winners room at the British Fashion Awards 2013 at London Coliseum on December 2, 2013 in London, England. (Photo by Stuart C. Wilson/Getty Images)
LONDON, ENGLAND - NOVEMBER 25: Gwyneth Paltrow attends the Matthew Williamson and Gwyneth Paltrow Kids Company dinner at aqua shard on November 25, 2013 in London, England. (Photo by David M. Benett/Getty Images)
PARIS, FRANCE - NOVEMBER 07: Gwyneth Paltrow launches the Printemps Christmas Decorations Inauguration In Paris at Printemps Haussmann on November 7, 2013 in Paris, France. (Photo by Dominique Charriau/WireImage)
HOLLYWOOD, CA - SEPTEMBER 16: Gwyneth Paltrow arrives at the 'Thanks For Sharing' - Los Angeles Premiere at ArcLight Hollywood on September 16, 2013 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - SEPTEMBER 16: Actress Gwyneth Paltrow arrives at the Los Angeles Premiere 'Thanks For Sharing' at ArcLight Cinemas on September 16, 2013 in Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
EAST HAMPTON, NY - AUGUST 10: Actress Gwyneth Paltrow signs books during Authors Night For The East Hampton Library at Gardiner's Farm on August 10, 2013 in East Hampton, New York. (Photo by Matthew Peyton/Getty Images for East Hampton Library)
NEW YORK, NY - MAY 07: Actress Gwyneth Paltrow attends Meet The Developer at the Apple Store Soho on May 7, 2013 in New York City. (Photo by Debra L Rothenberg/FilmMagic)
THE TONIGHT SHOW WITH JAY LENO -- Episode 4448 -- Pictured: Actress Gwyneth Paltrow arrives on April 25, 2013 -- (Photo by: Stacie McChesney/NBC/NBCU Photo Bank via Getty Images)
HOLLYWOOD, CA - APRIL 24: Actress Gwyneth Paltrow arrives at the 'Iron Man 3' - Los Angeles Premiere at the El Capitan Theatre on April 24, 2013 in Hollywood, California. (Photo by Allen Berezovsky/WireImage)
NEW YORK, NY - MAY 06: Actress Gwyneth Paltrow attends the Costume Institute Gala for the 'PUNK: Chaos to Couture' exhibition at the Metropolitan Museum of Art on May 6, 2013 in New York City. (Photo by Jennifer Graylock/FilmMagic)
Both Lawrence and Paltrow admit that they are "fortunate" to be receiving such a "fantastic salary" in the entertainment industry, but the pay gap between men and women is still an issue. "I think it's very brave to say, 'Hey wait a minute. I'm just not being paid the same as a man, just based on that job,'" the Iron Man actress explained.
"I didn't want to seem 'difficult' or 'spoiled.' At the time, that seemed like a fine idea, until I saw the payroll on the Internet and realized every man I was working with definitely didn't worry about being 'difficult' or 'spoiled,'" Lawrence said of her salary negotiations. "This is an element of my personality that I've been working against for years, and based on the statistics, I don't think I'm the only woman with this issue."
"There's a double standard in the whole world, yeah, for sure. This is just one aspect," Cooper said. "Anytime there's a place where a voice can come out and be outspoken -- something Sienna did, or Jennifer -- that's great. ... I think it is making a difference."
Related -- Jennifer Lawrence breaks her silence on the Sony hack: