I'm a bit confused. The 2.5x rule of thumb is what has been used. Let's use the first omen like
@TP2000 said. 2.5x the 30mil budget would be 75mil. That would be 24mil shy of profit. Every estimate I've given was that same formula. The problem I've seen is the ones who leave out a marketing budget. We saw that a lot with elemental and mermaid.
It doesn't involve grossing down the box office figures. It's actually much simpler than you all think it is.
It's an estimate of how much the film made or loss on the Studio end, not an estimate of costs or revenues. Essentially it's always been a simple checkmark of what a film needs to clear in the box office to balance itself out. The 2.5 rule is really most applicable to a conversation of break even. A quick mental tally that if a film makes more than 2.5x the production cost in the box office, yes the film has broken even for the studio.
So if a film costs 30 million to make, it breaks even with a 75 million box office (NOT a 90 million box office as being mis-reported).
For the First Omens current 20 Million Domestic Take and 33 International Take
1) ((Production budget*2.5) - Box Office)/2=
- 30 x 2.5 = 75
- 75 - Box Office (53.6) = 21.4
- 21.4 / 2 = 10.7 Million in net Studio Loss
What we are left with for Revenues
1) The Production Budget was 30 million
2) The Marketing Budget we *think* was 15 million**
3) The Residuals are unknown
4) The Interest is unknown
5) The Participation should be zero since there is no profit
**This would be typical for a Disney movie that broke even, though marketing budgets are reduced if a film fails out of the gate or potentially doubled+ when they are extremely successful. The whole point is the marketing budget and additional costs are not fixed, the only anchor we have is the Production budget.
What we are left with for Costs
1) The film made 12 million at the Domestic Box Office
2) The film made 13.44 million at the International Box Office
3) The film has made some unknown post theatrical revenue - Usually about double the unknown additive costs
Similarly, the revenue are not really fixed, the only anchor we have is the Box office.
So the film cost perhaps 50 million dollars and made 39.3 (from post office and post theatrical) and will have lost 10.7 million for the studio. Or it cost 75 million and made 64.3 million, but lost 10.7 million for the studio.
It doesn't really matter, at least you have three accurate numbers to vacillate over. A production Cost, a Box Office and a better prediction on if the Studio made money.
I think where everyone is running afoul is that they are pretending like they accurately know the marketing costs - and we really don't. It's not that a 2.5X rule ignores that, it just comes out in the wash - it's baked into the presumption.