How is the opening sequence of Scream conventional to a thriller opening? (Mr. S)

How is the opening sequence of Scream
conventional to a thriller opening?

CINEMATOGRAPHY 

Shot Sizes | zooms into a close-up, XCU of her hand on the door, middle shot of boyfriend as he is alive, long shot of boyfriend displaying is limp body after death

Camera Angles | high angle from when she is laying on the floor and the antagonist is over her

Movement | zooms into her face as the atmosphere changes and sound begins, panning shot of the girl being dragged across the floor.

SOUND

Digetic/Non-digetic | voice on the phone could be digetic and non-digetic as we can see it comes from the phone but cannot see the person talking, her voice is digetic, the popcorn is digetic, the phone ringing is digetic, the music is non-digetic

On/Off Screen | boyfriend being stabbed on screen, but not seen.

EDITING

Cuts/Fades | cut from the struggle to the car calmly driving down the hill.

Slow/Fast | edits are slow paced as she is on the phone, speeds up towards the attack  and slows down again as she is beginning to die.

MISE EN SCENE

Lighting | high-key in the beginning, top lighting as she is indoors

Setting & iconography | setting inside of her home and her backyard, iconography including a rope, phone, blood, smoke, fire.

BODY LANGUAGE & FACIAL EXPRESSION

boyfriend seems furiously scared as he is struggling in his chair and his face appears to be painful, the girl is scared as she shakes, cries, hugs herself and often stops in her tracks, looks around with a fearful and mistrustful expression, in the beginning she casually moves around her home (leaning on the counter for example) and cautiously crawls/runs around it.

COSTUME

the girl is dressed in neutral looking clothes which become tainted in blood, the boyfriend is in a jersey jacket representing his youth and is also covered in blood eventually, the antagonist is in a black gown, indicating evil and death, also wearing a mask, letting us know that his murder will not be put to justice, or the only one, because his identity will not be recognized by the girl who's going to die anyways and there are no witnesses.