The star of the Mamma Mia! sequel maintains she's not a huge A-list actor (yet), but she's passionate about putting her platform to good use. For example, she's participated in U.K.'s ERA 50:50 campaign, an effort that, according to its website, "is campaigning for a 5050 gender balance across British stage and screen by 2020." As she told Allure, this is not merely a matter of "actresses moaning for more money" from the powers that be. "It's about the direct impact on our communities, and that extends to all things with diversity and women," she said. "It's got to be fixed. I've got to get more involved."

The idea of demanding an inclusion rider on future projects is one that she feels somewhat embarrassed about as, "I don't know if people will laugh at me if I say I need to have it, because I guess you have to have a certain amount of status to actually enforce those things." However, as James argued, "I think whatever point you're at it's something you can say, and we've all got that power."