Bruckheimer says that "she brings a lot of humor to it. And the fact that she's so feisty." He also confirmed that there will be "a little romance between [Johnny Depp's] Captain Jack and the character that Penelope plays."
Geoffrey Rush will be back as Barbossa as well, but Bruckheimer says the story is "going to take a whole new direction" and they're "looking for some new kids to be in it" in supporting roles which are being tested right now".
Filming on 'Pirates' 4 kicks off in June under the helm of Rob Marshall.