Warner Bros is reportedly "furious" after being forced to buy out several showings of Daniel Radcliffe's Broadway show in order to secure his appearance at the final Harry Potter premiere.

New York Post reports that the actor, who is starring in How To Succeed in Business Without Really Trying until at least November, would not have been given a release for the London premiere of Harry Potter and the Deathly Hallows: Part 2 on July 7.

According to the newspaper, a "bitter" negotiation took place between Warner Bros and the play's producers, which resulted in the studio paying $500,000 (£306,206) to free Radcliffe from his role for five nights.

A source said: "Warner Bros is furious that Radcliffe committed to Broadway when he should be promoting Harry Potter.

"This is the final film, so it's a big deal. A grand world premiere is being planned as well as a US premiere and a press tour. They absolutely couldn't do it without their big star.

"But the theatre producers dug their heels in and said they wouldn't release Radcliffe unless Warner bought out the entire theatre for the nights they need him."

Source: Press Release