Analysing Existing Thriller Openings

The Matrix (1999)

Mise-en-scene
First is the Warner Brothers logo, in green spinning into it's usual position. It fades to black, suggesting darkness. Straight cut to the Village Roadshow Pictures company's logo, with is also tinted green, it is apparent that green is to be a theme, green is suggested to be linked with the early model computers, the green foreshadows the links to computers and technology. Letters and numbers scroll down the frame in green, this makes a stronger link to the old generation of computers. Camera begins to zoom in on the letters which spell out "THE MATRIX" in an off white.The letters fade and are replaced by a green cursor, another referral to the old computers. A code scrolls along the screen as if it's being typed, another referral to computers. Straight to black, it is replaced by another message 'typed' in green "Trace program: running". Straight cut to green numbers, which rapidly change, the camera zooms in as columns disappear, numbers appear at the top.
There's a graphic match as the camera zooms into the '0' which seems to melt into black. A white dot appears, it grows closer and bigger as the camera zooms in at speed the camera pans slightly to the left to show a policeman holding a torch.

Sound
The WB logo is accompanied by a sci-fi soundtrack with sounds like a computer/machinery which merges into wind/horn instruments.
The horn instruments grow louder and more intense as the letters fall and make "THE MATRIX" this is to make it seem more dramatic and important.
When the cursor is flashing, there's a non-diegetic sound of a phone dialling, a phone conversation goes on with a woman and a man, about a "him" and "The One" the subject reminds anonymous, creating an enigma, "The One" makes him sound like an important person.
The woman apparently hears a noise and the says "Are you sure this line is clean?" this creates mysteries to the audience as to what 'clean' means. "I better go." This leaves the audience hanging, as they don't know who she is, or where she is, so it creates a situation enigma.
There is more computer/machine sounds as the camera travels down through the '0' in the background, fainter than for the horns play the same notes as before making it apparent that important parts are coming.

Editing
Most of the editing for the opening sequence is either straight cut or a slight fade, mostly to black.

Titles
The only titles there are in this sequence, is the film title "THE MATRIX".