Zodiac

Zodiac Sound 
The opening scene starts off with non diegetic sound of a soundtrack playing in the back, it is then followed up by a sound of a car pulling up towards a house, you can hear the sound of fireworks going off, this is diegetic sound because its happening in the world of the film. Then when the car stops you can hear the sound of the horn beeping and dialog between two characters. You can hear the sound of one of the characters playing with a lighter that is followed by the sound of the car door opening and the character sitting inside. Then you hear the sound of the car driving off. When the car stops you hear dialog and then the sound of another car pulling up next to the car. Then you hear the sound of fireworks being shot at the car and laughs, followed by the car that pulled up driving off. Then you hear the sound of another car pulling up and the sound of the car stopping then driving around. Then you hear the sound of the car coming back and stopping. You then hear the sound of the car door opening and the person walking unto the car, and then you hear dialog from the character followed by gun shots, in the back you hear the sound of a soundtrack being played that is non diegetic sound.
After the soundtrack ends you hear the sound of a police radio.

Zodiac Camera
For camera, the opening scene starts of with a wide shot of Los Angeles, Then you see a tracking shot of a car being driven into the drive in-front of someones house. Then you see a reverse shot followed by a medium angle shot. Then there's a mid shot of the two people in the car driving. Then there's a high angle shot of the car, followed by a mid shot and a reverse shot. Then there's a point of view shot of a car driving up-to the car with the people in it then driving off. After that its back to the reverse shot. Then there's a point of view shot of the car that drove off driving back to the car and a mid shot o the first car. Then a tracking shot of a person walking up to the car and a reverse shot of the gun shooting the people in the car.

Zodiac editing
The scene starts off really slow coming up to the scene of the killed shooting the two people where it gets alot faster. It's almost as if the tension is building up to that scene. All together in the scene their are about 40/45 cuts and the ones in the starting are the ones with the most duration.

Mise en scene 
From the opening scene of Zodiac you can tell that the people were living in the 80s times, this is because of the way that they are dressed, specially the people who are the ages between 20-25 they have bright colours on. Also, the characters in the film have an old American accent they dont really sound like the Americans nowadays.