The purpose of an opening sequence is to set the mood of the scene and where it is taking place. It also shows the audience the time frame of which the indicated genre film will take place and in thrillers, an opening sequence will often set a sense of enigma to help engage the audience.
The opening sequence sets the scene by using certain editing styles such as jump cut. This is when the shot will suddenly focus on one thing, this is present when the clown mask is spotted by the killer and he picks it up. The sudden focus on the clown mask creates a sense of enigma because it makes the audience enter a state of unknowing and suspicion and they want to know who the killer is.
Another editing feature used is straight cut. This is when there is a change of view point or location, often to change the scene. The effect of straight cut on the audience makes there a clear setting of what's going on and can hint out what could happen later on within the scene. Straight cut can be seen when the camera is at POV switching scenes from being outside to going inside the house into the kitchen and then lounge.
Moving onto camera angles. They are very important within the opening sequence because it helps set the mood. Through out the whole sequence there is a continuity of POV used. This can be seen to be used to keep the enigma and make the audience want to know who the killer is, but also the killers thought process on what their strategies are and how they do things. This tricks the audience to think that they could have the same capabilities of the killer and the effect that the killing has on the victims, therefore it can confuse the audience.
Also there is handheld used within the camera angles. It is handheld when the killer is going into the house. The reason this camera angle is used, is to create a sense of urgency and chaos because of what is yet to be revealed in the later part of the scene which therefore is the films way of warning the audience of what could happen and what is going to happen because as we later on see, there is chaos and urgency because the killer strikes a murder.
I also noticed that zooming out in a high angle at the end of the opening sequence is used and this could be to represent that the location is extremely vulnerable as it's a separated, suburban house that wouldn't necessary be expected to have a killer inside of it and creates a sense of normality and reality which makes the audience feel vulnerable too as it can relate to them.
Part of the opening sequence involves sound. In this scene it is mostly non diagetic sounds that can be heard throughout the sequence, this is the fast pace music that seems to quicken and heighten in pitch when something involving adrenaline is used. In this case, it is when there is about to be a murder and this makes the audience feel up tense and nervous so therefore the thriller is meeting it's aim to create all shock, suspense and surprise.
Off screen sound is also used at the beginning when there are children's chant to what seems to be a rhyme but can be mistaken for as the same rhythm as a spell. This gives the audience the idea that the film could include characters such as children who could either be a victim or in this case.. the killer. Also because we can't see where the noise is coming from it can make the audience feel vulnerable and nervous.
The representative of characters are introduced within the opening sequence to make the audience aware of who the main characters are and why they're important at that particular moment. In the opening sequence we see a loved up couple who are completely oblivious to the fact that someone is watching them from outside the window and then inside the house. It shows a typical feature of a thriller because ultimately the victim is unaware of what is going to soon happen and therefore represents the characters at this point as vulnerable and unknowing, therefore creating a sense of enigma.
Also at the end of the sequence the masked killer gains an apparent identity. This is evident when the young boy comes out of the house as his parents, in shock, discover their son with a bloody knife in his hand. It makes the audience feel nervous as to what has happened because the representative of the character is that often the innocent aren't and because this is used within the opening sequence it grips the audience and makes them want to know more, which often engages them for the rest of the film because the use of enigma.
The narrative of the opening sequence is something of a frequently seen setting within the thriller genre. For example, in this opening sequence we can see that there is a detached house in a suburban area giving the idea that this is something that could happen to someone in the audience because a lot of us live in suburban audience therefore making us feel more vulnerable to the film and perhaps feel like it's a bit too close to home so the audience are therefore nervous as to what's going to happen. Also the fact that there is a murder within the opening sequence makes the audience more aware as to what the films going to be because there is a strong convention to a thriller film.
Throughout the opening sequence, conventions are used. For example, where the killer is... there is low key lighting through out until we see the murder taking place where it is lifted to high key lighting. The reason it changes between the two is make the audience focus on what's going on because it is clearly an important part for the audience to observe. It sets the scene for the rest of the film too. A lot of camera angles that are conventional to a thriller film are used... looking at the end of the opening sequence when the camera zooms out so you can see the whole surrounding scene of the detached house it makes the audience see the vulnerable victims and this is conventional to a thriller because it makes the audience aware that the victims are actually isolated. Another thing that is conventional to a thriller film is the iconography. The iconography used is a knife as a weapon to murder which is religiously seen in thriller films so it's conventional because when you think about a thriller film, the initial though is very likely to be with knife crime used on the victims in some sort of way.
Ultimately the opening sequence of a thriller sets the scene as to what's going to happen throughout the film and what the theme of the film is. It is a way of warning the audience about what could possibly happen. Analysing this opening sequence will help me plan my own thriller because like the clip I will be creating, it is a short clip to give the audience a rough idea as to what the thriller is about, so I find it quiet inspirational to use features from this and include in my own work. Also, because it carries a sense of enigma it really creates the atmosphere of enigma and unknowing, everything is a mystery and I'd very much like to portray the element of enigma within my own opening clip.