Daniel Craig and Sam Mendes attend the event to announce the start of the production of the James Bond Film 'Spectre' at Pinewood Studios on December 4, 2014 in Iver Heath, England.

The next James Bond installment, Spectre, is reportedly over budget and on track to be one of the most expensive films ever made at a cost of more than $300 million.

That's according to CNNMoney, citing internal documents that were leaked online by hackers who broke into Sony. The internal memos from the MGM Studios president are the latest in a treasure trove of emails that are airing Hollywood's inner workings. Details have emerged about ballooning film budgets, war of words between studio chiefs and producers, and salary discrepancies between male and female executives.