Our budget numbers are based on media reports and are often supplied by sources close to the production. All our figures are estimates, not exact amounts.
Studios and production company not usually very forthcoming when it comes to discussing how much a film cost, especially when a movie performed poorly at the box-office. Additionally, reported budgets may change over time due to escalating costs (Waterworld and Titanic are two high profile examples) or costs may be difficult to calculate (the salary for a star or director may be part of a sum agreed for a package deal consisting of several films).
Reported budgets may also vary greatly depending on whether they only include the cost of producing/shooting the film (the so-called 'negative cost') or also additional expenses (like prints and advertising). For low-budget movies, the promotional expenses can often be much larger than the negative cost (see for example The Blair Witch Project).
Whenever available, our budget figures refer to a film's negative cost, unless otherwise indicated.