Bad news for Pirates of the Caribbean fans hoping to see one more outing for Elizabeth Swann: Kiera Knightley says she doubts she will do another film in the franchise.<br />Timing is the culprit here, rather than boredom or frustration, at least as far as a recent interview seems to suggest.<br />According to The Los Angeles Times, Knightley's cameo in the fifth installment was likely the character's final appearance for a simple reason: big-budget blockbusters take a long time to shoot. <br />
