And in February 2026, the Cass Elliot biopic My Mama, Cass, was announced, starring Baby Reindeer‘s Jessica Gunning. In December 2024, Woodley knocked on the wood of Jimmy Fallon’s desk so she didn’t jinx the chances of the Joplin film happening. “I’ve wanted to tell her story for a really, really long time, and I didn’t know how to do it,” Elliot-Kugell told us in an exclusive interview ahead of the memoir’s publication. But in November 2024, she confirmed in an interview with Vanity Fair that the Ronstadt film was still underway. This article was updated with the news of the Cass Elliot biopic on March 2.