One Battle After Another is a 2025 American action thriller written, directed, and produced by Paul Thomas Anderson, loosely inspired by Thomas Pynchon's 1990 novel Vineland. The film stars Leonardo DiCaprio as "Ghetto" Pat Calhoun, a washed-up former revolutionary forced back into conflict when his nemesis, Colonel Steven J. Lockjaw (Sean Penn), resurfaces after sixteen years to hunt down his teenage daughter. Notably shot in VistaVision—a format rarely used since the 1960s—the production was Anderson's most expensive to date, with a budget of $130–175 million, and became his highest-grossing film, earning over $213 million worldwide after its September 26 release. The movie was a critical and awards-season juggernaut, receiving 13 Academy Award nominations and winning six, including Best Picture and Best Director, alongside major victories at the Golden Globes, BAFTAs, and Critics' Choice Awards. Its plot follows Pat's paranoid, off-the-grid life with his daughter Willa, which is upended when his enemy's anti-immigration crusade and a secret white supremacist society threaten their safety, forcing a violent reckoning with his revolutionary past.