If the basis of your costs is on the total budget (I don’t know how things are done in the movie business, so that might be true) and you were lied to about the total budget, I’d say it was a reason to sue.
Do you know how these contracts normally work?
The document states that Fitzgerald was told by Gibson that he would be working on a small, four to seven-million-dollar project that would yield little money for the former, and none for the latter. However, some accounts reveal that the film grossed over 600 million dollars worldwide. Fitzgerald's complaint is that he was paid 75,000 dollars, and that he had to borrow 200,000 dollars from Gibson for expenses.Apparently part of the rub is that Gibson promised FItzgerald that he (Gibson) would never profit from the movie, because it would be wrong to make money from the story of Jesus. Instead, Gibson has paid himself $30 million.
Yes, if that is what the contract said. But if the contract does not state that, the guy only has himself to blame.