If the $300M was for one film, the total budget would be about $450M which means that film would have to make over $1.3B just to break even.
No one is ever going to be offered that much for one movie.
On Stranger Tides had a $411M budget, made $1B at the Box Office and lost $93M.
The next movie reined in that budget bloat. Dead Men had a $280 budget (sill huge, tho), made $794M at the Box Office and lost $23M.
Attempting another bloated budget Pirates movie would be insane.
No one is ever going to be offered that much for one movie.
On Stranger Tides had a $411M budget, made $1B at the Box Office and lost $93M.
The next movie reined in that budget bloat. Dead Men had a $280 budget (sill huge, tho), made $794M at the Box Office and lost $23M.
Attempting another bloated budget Pirates movie would be insane.