This has been under my skin since I learned about the 180 Degree rule. People say the only time it's okay to break the 180 Rule is when a conversation is being held in the car. But the 180 degree line is not broken. The line moves and the camera position becomes lined up as if it was lined up for a over the shoulder shot. You have two guys in a car and they heads are facing each other. Just because the camera flops from side to side, that doesn't mean the 180 degree rule is broken, the line just sits in front of the actors and the cinematographer is still technically on one side of the axis.