Notes on Alfred Hitchcock's - Rear window opening.

The opening of rear window immediately uses the convention of isolating the protagonist, this is shown with a close up of the cast on his leg. This also shows the audience the protagonists weakness - he us unable to walk, meaning he cannot do anything about what he sees. Hitchcock places us in the position of a voyeur by doing point of view shots of the neighbors, giving us a sense that we are watching the neighbors as well.
Hitchcock objectifies the female character by dressing her in a bikini and putting her in the presence of men on most occasions. this gives the idea that she will be in danger at some point of the film.
Mistaken identity is used when we first meet the antagonist. At first we feel sorry for him, dealing with a nagging wife who doesn't appreciate him, however, further on in the film, we begin to see him as an evil character.