Actor Michael B Jordan joined the movement last week when he announced he would add an inclusion rider for all projects created by his Outlier Society Productions banner.
Matt Damon and Ben Affleck's production company Pearl Street has confirmed they will now adopt inclusion riders for all future feature films.
An inclusion rider is meant to improve gender and racial diversity within films.
Fanshen Cox DiGiovanni made the announcement on Monday night via Twitter at the South by Southwest Film Festival. Following McDormand's call to action, Michael B. Jordan got the trend going in earnest, formally announcing that he will be using inclusion riders for all forthcoming projects he produces.
In her acceptance speech, McDormand honoured the other women who were nominated in various categories. Frances McDormand used her Best Actress Oscar win to encourage Hollywood to use "inclusion riders" in their contracts, which would require any production to interview a broad spectrum of diverse people for supporting roles and key jobs on set. She's also on the board of the Annenberg Inclusion Initiative, the think tank housed at the University of Southern California that was, conveniently, founded by Dr. Stacy L. Smith, the co-originator of the official inclusion rider.
"For those of you asking about the #InclusionRider, it's created to ensure equitable hiring in supportive roles for women, POC, the LGBT community, & people w/disabilities", the tweet said.
Pearl Street Films will insist on a diverse cast and crew.