Which Harry Potter film was the only one not released in the year it was originally scheduled for?

Harry Potter and the Half-Blood Prince was the only Harry Potter film moved from its originally scheduled release year. Warner Bros. first planned to release it in November 2008, but the film was postponed to July 2009.

The sixth film was directed by David Yates and adapted from J.K. Rowling’s sixth novel. Daniel Radcliffe, Rupert Grint, and Emma Watson returned as Harry, Ron, and Hermione, while the story explored Voldemort’s past and Harry’s growing understanding of the enemy.

The delay was publicly linked to the studio’s release strategy rather than a change in the story. The film eventually premiered in London on 7 July 2009 and opened widely later that month. Other films in the series also had different release months, but this was the notable one-year schedule shift from 2008 to 2009.