As a film opening, we've included idents and titles, so that it is clear to the audience that it is a film opening. We have also included some conventions of thriller films to that is also clear to the audience that it is a thriller film. Comparisons with how we have done our thriller film opening can be made with The Silence of The Lambs -which has a classic thriller opening- as I will show you now:
The Silence of The Lambs opening:

7 In order to challenge accepted conventions of thriller films, we changed the gender of the protagonist/victim to male- in thriller films it is often female, such as in The Silence of The Lambs. Females are seen as more vulnerable than men, so often play the role of the victim, whereas in this it is a male victim, so the threat towards him isn't as anticipated.
5 Low lighting is used to create tension and uncomfortable viewing for the audience.
8 Extreme close-up of protagonists face to convey the emotion in the scene.
9 Certain amount of threat is shown, as blood is shown on this knife, murdered bodies are shown in The Silence of The Lambs. The blood signifys the oncoming potential threat to both protagonists in both films.