Marcel the Shell with Shoes On is a 2021 American live-action/stop-motion animated mockumentary film, co-written and directed by Dean Fleischer Camp in his feature directorial debut. It is based on and serves both as a direct stand-alone sequel and prequel to the series of Marcel the Shell shorts written by Jenny Slate and Fleischer Camp. Slate reprises her voice role as Marcel, an anthropomorphic seashell. Fleischer Camp, Rosa Salazar, Thomas Mann, Lesley Stahl, and Isabella Rossellini also star. The film follows Marcel, a shell who lives with his grandmother, Connie, after posting a short film online bringing Marcel millions of passionate fans and a new hope of reuniting with his long-lost family.

Marcel the Shell with Shoes On premiered at the Telluride Film Festival on September 3, 2021, and began a limited release in the United States by A24 on June 24, 2022, before its wide release on July 15. It was critically acclaimed and nominated for the Academy Award for Best Animated Feature.