Jaws film opening two minute analysis

The beginning scene of Jaws begins with a young girl named Chrissie going for a night swim for another boy. The boy is drunk so ends up just lying on the waters edge unable to move because of the amount of alcohol he has consumed. This leaves Chrissie alone in the sea. We are shown a long shot. This makes the audience really see how big the sea is and how alone Chrissie seems to be. About 10 seconds later the shot turns to a low angle shot and we see Chrissie's legs kicking under the water. The camera then begins moving closer to Chrissie's legs, the camera obviously being the shark. This low angle shot makes the audience feel as if they're looking upwards which makes the villain- the shark, seem even more threatening. This type of shot makes Chrissie look extremely vulnerable and the shark very powerful.  The music playing whilst this is taking place is music that is letting you know something is about to happen but it's not quite yet about to happen- it's building you up for the big moment. This is a common convention of a thriller. Music that puts the audience on edge right before an attack of some sort. It makes the audience understand when something is about to happen to a character.
   The next low angle shot we see is again of Chrissie's legs but this time the shark is a lot closer and the music has changed. The music is now giving the audience suspense and they know the attack could happen at any time. The music gets louder and faster as the shark gets closer. Then just as the shark has reached her feet the shot changes to a close up. We see her facial expression before the shark attack then straight after. She is smiling at first then as soon as the shark makes contact she is ripped downwards and her face changes to a confused and scared look as she doesn't quite know what is happening yet. After she is dragged downwards underneath the sea she comes back up and her breathing changes. She starts panicking and she is breathing fast and heavily. Chrissie is then dragged under the water for a second time and when she comes back up she begins screaming as now she really knows what is happening. She is getting dragged around the water by the shark. The shot being used in this part of the scene is a mid shot. This is effective as we see a stretch of the water and Chrissie. We can see her being dragged around the water without having to change shot.
   The final part of the scene is when Chrissie is finally taken by the shark and dragged underwater. The music stops showing the audience that the attack is over.