For a while now, people have been talking about how great it would be if you could walk out of a movie theater and buy a copy of that movie in the lobby on your way home. A few producers have asked to do it and gotten shouted down.
So, I think an effective option would be to do an end run around the mainstream. There are film festivals for indie producers, and indie film is increasingly active in crowdfunding. Those people are putting out their own movies; they have control over what happens with the products. So an indie producer should be free to do simultaneous screen and consumer release if they want to. Once people got a taste of it, they'd scream at the mainstream movie companies until it became the norm. Or until the dinosaurs became extinct.
If you are into indie movies, or know people who are, pass the idea around.