genres of opening scenes

here is a war/romance film called forrest gump it doesnt give much away with the first 2 minutes of the film it basically follows a feather around in the air going through the town and leads to a man sitting on a bench this indicates that the film will be revolving around this person. The music played is soft and gentle very feminine. scening is very natural and calm gives full focus on the feather and bring tension and attraction as the audience are curious to what it has to do with a feather but they are so intreged they proceed to follow it on the screen. the feather lands on a mans foot and as he comes to pick it up we are analysing him bottom to top by the use of camera compisition.