Like much of the country, the "Still Alice" and "Freeheld" actress was shocked and devastated by the mass shooting at Sandy Hook Elementary in 2012, and felt the need to put her star power to good use.
Moore recalled to People, "I was like, 'I've had it.' I said to my husband, 'I've got to do something. This is the one thing that I need to say something about. This is my responsibility as a parent."
She subsequently teamed up with gun violence prevention organization Everytown for Gun Safety to create the Everytown Creative Council, a group of more than 80 Hollywood celebrities who support gun safety regulations.
"For cars, you have to have training and you have to have a license, and you wear seat belts and we have airbags and we have all of these things in place that have reduced fatalities unbelievably," she told People. "And it was a totally unregulated industry at first. I feel like something that is very sensible and straight forward can be done also with guns."
Joining Moore on the list of celeb Council members are Kim Kardashian West, Jennifer Lawrence, Amy Schumer, Kirsten Dunst, Ellen DeGeneres, Kristen Bell, Mindy Kaling, Elizabeth Banks, Zoe Saldana, Reese Witherspoon, Adam Scott, Jessica Chastain and Aziz Ansari, to name a few.
"I was going through my address book alphabetically. That's all I did. 'Please, are you interested,' and the response has been overwhelming," Moore said. "I'm so, so thrilled everybody feels this way about this issue. I feel like with gun safety, there have been many people who feel threatened by saying something but I don't think I'm saying anything that's unreasonable. With all of these rights that we have in our Constitution come a great deal of responsibility, and I think the founding fathers would agree with me."
The specific goal of Moore's Council is to increase gun safety by "keep[ing] guns out of the hands of dangerous people -- including convicted criminals, domestic abusers, stalkers, terrorists and people with dangerous mental illness." It also aims to require safer gun storage around children and reduce gun violence via communication and "the power of culture."
Each of the 82 signees to the Council has agreed to "commit to use [their] creativity and visibility in the months ahead to help drive real change [and] mobilize Americans to help save lives from gun violence."