Actress Sienna Miller told Vogue in a new interview that she refused a role in a two-person Broadway show when she learned her male costar would receive a significantly higher compensation for the play.

"It was a play with just two of us on stage and I was offered less than half of what he was going to be paid," she told the publication. "If it was two men, it wouldn’t probably happen. Sad, but I walked away. The producer... wouldn’t pay me within a million miles of what the male actor was being paid. And women always have to do more publicity than the men. The only way is to make a stand. We are going to have to make sacrifices to make change. I want to turn up and feel dignified."

This comes at a time when Hollywood is frequently criticized for its own gender pay gap. As ATTN: previously reported, visual data news site Dadaviz used figures from Forbes' 2015 highest-paid actresses list to show the drastic gap between the industry's highest paid males and females:

Dadaviz - dadaviz.com

The larger issue of the gender pay gap

While it's great that Miller can turn down a job for seemingly taking advantage of her, she is in a position of privilege as a high-profile celebrity. The gender pay gap impacts many industries, but most women do not have the luxury of declining an opportunity because they resent getting paid less than men in comparable roles. Women earn an average of 77 cents to every dollar that men make, according to the National Women's Law Center, and the pay gap is even worse for women of minority backgrounds and in certain parts of the country. Earlier this year, the Institute for Women's Policy Research (IWPR) published a report that found it will take another 43 years for the wage disparity between genders to disappear.

Some career fields will see the gap eliminated before 2058, when females all over the U.S. will supposedly have equal pay. Florida is projected to be the first state to reach gender pay equality. The women of Wyoming, however, will have to wait until 2159, another 144 years, to see gender wage equality.

Women's Policy Research - statusofwomendata.org

The pay gap parity varies by state, education level, race, and choice of industry, as noted by the Daily Beast. Hispanic women make a little more than 50 percent as much as the average white man. Asian women, however, earn nearly 90 cents to a man's dollar.

As ATTN: previously noted, the more educated a woman is the higher the pay gap increases. Women with associate's degrees earn 80 percent as much as their male counterparts while women with graduate degrees earn less than 70 percent of what men in comparable roles earn, and females with a bachelors degrees have it only slightly better at 71.4 percent. Because it's common to take out students loans to pursue bachelor and graduate degrees, this means that a woman might take even longer to pay off her loans than a man would after finishing higher education.

During the spring, Salesforce CEO Marc Benioff spoke out against the gender pay gap and promised to end it as his company within the next few years.

“I expect to be giving a lot more,” Benioff told the Huffington Post. "My job is to make sure that women are treated 100 percent equally at Salesforce in pay, opportunity and advancement. When I’m done there will be no gap."