At the beginning of this movie there is a battle scene. Young midshipman Blakeney breaks his arm and has to have it amputated. The scene of the removal of the arm takes place after the battle (about 5 minutes after). All is fine --no sign of his arm until a scene half way through the movie. Russell Crowe is on deck and approaches a crew of young midshipman who are practicing how to use a sextant. The young crew are attending to their instruments whenRussell Crowe gives them some advice.If you watch carefully you will see the camera pan the young crew holding their sextants. In this scene young Mr. Blakeney is holding the instrument with both hands! Put it on pause mode--yes indeed he now has two arms--and reverts to one arm for the rest of the movie.