Sabotage -1936

Sabotage is a film directed by Alfred Hitchcock in 1936. The extract i have seen of this film was of a small boy holding a package on a bus, but the package is a bomb. The audience know that the package is a bomb and the time the bomb will explode because of a note received earlier in the film saying 'Don't forget, the birds will sing at 1.45'. The fact that the audience is aware that the boy must drop off the package before 1.45, but the boy doesn't know what the package contains makes this scene very interesting. The way Hitchcock builds the suspense and tension with the music slowly increasing in speed, close ups on the boys face, and shots of clocks, making the viewer aware of the time is very clever, and has been copied by many directors since.