Harry Potter Series Logged £147.4 Million in Spending by 2025

HBO’s Harry Potter series had incurred £147.4 million in production spending by the end of 2025, according to filings by Plum Jam Productions cited in reporting on the accounts. The figure includes about £129 million spent during 2025, while filming continued into 2026 and wrapped in May. The amount is spending to date, not a disclosed final budget. HBO has not announced the completed cost of the first season, titled Harry Potter and the Philosopher’s Stone. The reported total also predates the end of filming and any later post-production work. The £147.4 million figure was reported as roughly $197 million. It is below the reported $250 million budget for Harry Potter and the Half-Blood Prince, commonly identified as the most expensive film in the original series. Because the television season’s final cost is unknown, the available figures do not establish whether it ultimately exceeded that film’s budget. Plum Jam Productions is the UK production company named in the filings. The reporting says the company’s accounts record the series’ expenditure through 2025. Those accounts offer a view of costs incurred during production, but do not provide a final season budget. The first...