Because they’re sort of missing the point. People involved in the film (usually writers, cinematographers, and other various crew who get shafted on a regular basis) who have a net deal in their contract usually NEVER end up seeing any of that money, because they refer to the total budget of the film (distribution, prints, advertising, etc.) which is set up to basically never break even.

The money is diverted to the studio and stars by means of post-theatrical products like DVDs, toys, games, etc.

Most of that money that funded the film was not put in directly by the studio. Overseas distributors and, most likely, the nation of England, paid in advance for most of that budget.

I don’t know how this is news for this movie specifically, because this happens with every single major studio release.

In the words of David Mamet: “THERE IS NO NET!”