"It's institutional. It's not conscious," Wilde, 31, told The Edit in a new interview. "People don't realize what they're saying, because you hear it from both men and women. But there's this sense that a project is incomplete if there's no male participation."
Although the actress agrees that sexism in the movie business is a problem, she also believes it's taking a turn for the better, as Wilde tells the magazine that she's seeing more of a demand for females.
"People are now saying, 'Listen, you need to hire women, specifically because they are women,' and although that's uncomfortable, it's how things change," she added. "When I was younger, it felt like the main point was that [I was] one of the attractive actresses, and I felt totally minimized by it, as everyone does.
"But it's worn off, in a good way; I'm happy to have grown out of the place where that is the main point made about me."
After addressing one of Hollywood's hot button issues, Wilde discussed her relationship with fiancé Jason Sudeikis and dished on why the pair isn't in a rush to tie the knot, explaining that they're already "seriously connected."
"Before you have a child, marriage is the ultimate commitment and promise to one another, and then once you have a child, it's like, 'Oh, we're committed and promised already," Wilde said.
After two years of dating, the couple took their relationship to the next level, when Sudeikis, 40, proposed to Wilde in 2013, shortly after the holiday season, and welcomed son in April of 2014.