Melodrama and melodramatic characters:
"In melodramatic cinema, the interior emotions of the characters are expressed in means other than verbal Language: setting, color, music and other aspects in the mise en scene. Big emotions can sometimes not be put into words, and the feeling is displaced into other cinematic codes and signs"
"The function of melodrama is to clarify (make clear) the moral choices we make every day. There is a clear distinction to be made between melodrama and tragedy. The latter usually features noble characters who are determined to pursue a certain goal. Sometimes in conflict with the gods themselves, even to the point of death. There is very little whining or moaning in the acceptance of their destiny because, they themselves have shaped it and take full responsibility for it(can someone say Will?)"
Film Theorist Thomas Elsaesser contrasts action driven narrative with melodramatic story telling "In one sense the drama moves forward by having its central conflicts projected into direct action, a Jail break, a bank robbery a car chase. Not so in domestic melodrama, the range of "strong action" is limited"
PotC isn't a domestic melodrama. The emotions are not expressed inside..you see them projected on screen through other means
and Its only Jack/Liz who seem to do this in DMC
Jack/Liz do have their words..but its the actions that show more about their emotins as do objects like the compass. and other things like the dog and the Kraken IMO.