Amazon MGM Developing Film Adaptation of The Summer of Broken Rules

Amazon MGM Studios is developing a film adaptation of K.L. Walther's young adult romance novel The Summer of Broken Rules, Deadline reported on 21 October 2026. Sophia Stallone's Common Era Projects and Sylvester Stallone's Balboa Productions are producing. The book, published May 2021 by Sourcebooks Fire, has sold into 19 territories.