HBO Max has plenty of hot new movies and shows debuting in April 2026, but there's only one series that's dominating the conversation - Euphoria. The Sam Levinson drama is finally returning for its third and reportedly final season, and it features original stars Zendaya, Jacob Elordi, Sydney Sweeney, Hunter Schaefer, as well as new additions to the cast like Sharon Stone. Other notable debuts include Richard Gadden's Baby Reindeer follow-up, Half Man, and the streaming debut of Timothee Chalamet's Oscar-nominated sports film, Marty Supreme.