The Marvels is underperforming at the box office, opening far lower than expected and marking one of the worst premieres in MCU history. Despite its box office performance, The Marvels is a great crossover story with action, heart, and humor, and a significant step toward addressing the MCU's Avengers problem. The movie provides connective tissue to the wider MCU, featuring cameos and tying into other Marvel shows, setting up the state of the universe and the involvement of the Avengers.