Johnny Depp has revealed that he is uncertain that he will make a fifth Pirates of the Caribbean movie. Depp spoke to media about the future of the popular franchise, stating that he is not sure if he will return to the series after Pirates of the Caribbean: On Stranger Tides opens later this month. Boils down to story, script and filmmaker, said Depp of the decision to make a fifth Pirates of the Caribbean movie. Its not something where I would say, 'Lets shoot it next month to get it out by Christmas 2012. We should hold off for a bit. They should be special, just like they are special to me. The actor recently revealed that he was injured on the set of the latest film, declaring that he was forced to work through the injury in order to meet the hectic shooting schedule.DS At a conference for the upcoming film, Depp jokingly suggested an idea for the next two Pirates movies, according to USA Today. I have a clever idea for Pirates 5 and 6, he said. Were actually going to shoot it on the [Disneyland] ride. Penelope Cruz, who stars in the fourth film opposite Depp, recently revealed that the actor was constantly making her laugh on the set. Pirates of the Caribbean: On Stranger Tides opens in UK cinemas on May 18, and in the US on May 20. DS