 The Kraken was difficult to animate as it had no real-life reference, until animation director Hal Hickel instructed the crew to watch "King Kong vs. Godzilla" which had a real octopus crawling over miniatures.During the filming of the attacks, Keira Knightley (Elizabeth Swann) divulged that "the Kraken, at the moment, is just Gore [Verbinski] running around, going, 'I'm a tentacle.I'm a tentacle.