"An inclusion rider is an idea that's going around the industry and in Hollywood and New York and Atlanta where there's a lot of productions for film and television," DuVernay, who has been a consistent champion for inclusion, told ABC News.
She went on, "[It] says that as an actor, who usually has a lot of power on these productions -- that they want a part of their contract to say that the studio and the director and the producers will include all different kinds of people in the crew positions."
DuVernay, 45, added, "So all those hardworking crew members -- an inclusion rider says, 'if you hire me, you've also got to hire people who look like the real world.'"
DuVernay said she also agrees with McDormand's push for actors to include the rider when they sign onto new projects.
"I think it's a beautiful idea," she said. "And I'm really supportive of any idea that looks at ways to get more kinds of people, and more cultures, more races, more diversity and gender behind the camera."
While McDormand's speech may have started a broader conversation, DuVernay said she understands there's no guarantee it will immediately change things. However, she believes it's a great start.
"And so, good for her for using that international platform," she said. "And now everyone's talking about it ... And maybe it'll make real change."
"A Wrinkle in Time" opens in theaters Friday.
Disney is the parent company of ABC News.