He said: "Really, ultimately and truly, these films are made for the people. It's the people who go and pay their hard-earned money to see these things. If the people get tired of it or something - that's when it stops, I think."
He added that the series was not about the money: "When the process becomes impure - if the process becomes impure - if you're doing it for the wrong reasons - and I know everybody here is doing it for the right reasons - it's not all about the kerching kerching."
Depp continued: "Some people lose sight of the fact that it is the movie business. If a lot of money is spent on making a film then certainly whoever spends that money expects to make a return on it. But that's not the reason we dove into it. That’s not the reason we go in and made asses of ourselves. We do it for the people. So long as people want it, I’m there."