"Pirates of the Caribbean: Dead Men Tell No Tales," again starring Johnny Depp as beloved buccaneer Jack Sparrow, was initially scheduled to open in the summer of 2015.
"We have an outline everyone loves but the script is not done," Bruckheimer told The Hollywood Reporter.
Asked whether the budget for the next "Pirates" picture is another reason for the delay, Bruckheimer told the entertainment industry trade newspaper: "It's all a factor. We want a script that everyone's signed off on and a budget that everyone's signed off on."
The producer went on to say it is impossible to create a budget for the movie before Jeff Nathanson finishes the script.
"We're supposed to start in March and you start spending a lot of money now," Bruckheimer said about the timing of the decision to delay the project's release until at least the summer of 2016.