Mark Hamill can keep a secret. He told us so last night at the Los Angeles premiere of director David O. Russell’s new film The Fighter; starring Mark Wahlberg, Christian Bale and Amy Adams.

The actor was at the event in support of two of the the film’s writers, Eric Johnson and Paul Tamasy, who also co-wrote (with Hamill) the screenplay for the film adaptation of Hamill’s Dark Horse comic book, The Black Pearl. Johnson also partnered with Hamill on the original comic, which was released in 1996. Hamill is set to direct the modestly-budgeted film.

We had the chance to speak with the actor about the upcoming sequel to the Batman: Arkham Asylum video game, entitled Arkham City; what he loves about his role as The Joker, as well as some of the reservations he had, and has, about playing the iconic and beloved character.

He had originally planned on “going out on a high note,” after the massive success of the first Batman: Arkham Asylum, but laughingly acknowledges that the powers that be in Hollywood are not likely to take kindly to the idea of “quitting while you are ahead,” when they have a half a billion dollar property on their hands.

He shares some of the creative challenges of working as an actor within the sometimes “schizophrenic” confines of a video game narrative, as well as some of the pleasures of working within the “theater of imagination.”

The Star Wars star also has fun letting us in on how he has managed to keep some of the most closely-guarded secrets in Hollywood (for fear of retribution), as well as the good-hearted delight he takes in pulling a fast one on the press.

Take a look at the full video interview below:

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