The top mistakes in Pirates of Tortuga http://www.moviemistakes.com/film4184 en Sat, 22 Nov 2008 06:55:21 +0000 57065 At the opening of the film as the pirate ship passes left to right the flags are blowing in the opposite direction of the ship's movement and the sails keep blowing back although the ship keeps moving forward. Notice the large amount of churning water at the ship's rudder indicating that the boat is powered by a motor.