The week of March 23–29 will be remembered as the week the AI video landscape shifted beneath everyone's feet. OpenAI stunned the industry by shutting down Sora on March 25, collapsing a billion-dollar Disney partnership in the process. Meanwhile, SAG-AFTRA floated a radical new proposal to tax studios for using AI-generated performers, Oscar-winning filmmakers premiered a landmark AI documentary, and the post-Sora market began rapidly reorganizing around new frontrunners.