YourMovies.com.au offers an interview with Geoffrey Rush in which he discusses the third Pirates of the Caribbean film and working with Johnny Depp:

"Someone like Johnny is a great team leader..." he says. "It's great not to have a diva. It's great to have someone who's very laid-back, very playful... he's probably the only person who dares to ad-lib. A lot of what he throws in makes it into the final mix. Jack Sparrow is some crazy part of Johnny's brain.

"And Johnny Depp, we've been together for four-and-a-half years now on these films; he's one of the great character actors in a leading man's body who constantly surprises himself and his audience with his capabilities and imagination."