Thriller

BIRDS
A wealthy San Francisco socialite pursues a potential boyfriend to a small Northern California town that slowly takes a turn for the bizarre when birds of all kinds suddenly begin to attack people there in increasing numbers and with increasing viciousness.

Director: Alfred Hitchcock
Writers: Daphne Du Maurier (story) and Evan Hunter (Screenplay)
Stars: Rod Taylor, Tippi Hedren and Suzanne Pleshette

The threat in this film is nature, as the birds started attacking people and causing them to stay indoors.
in a screen where Tippi Hedren gets attacked by birds she literally is getting attacked by real birds and she did not know that this was going to happen and was traumatized .

This sequence gets the audience in tension as she goes up the stairs slowly only showing the light and the music gets the audience tensed, then when she opens the door the camera is on her hand when she opens it which implies that something bad is going to happen, she then finds the hole in the roof and then turns around and all these birds start attacking her. The shots are very fast cuts which shows action and this also sets the mood for the audience, as some of the shots are shown as if it was her point of view and the audience can feel like how she felt in her shoes.