Hope you dont mind, but I copied and pasted this from another similar topic. Just insert whomever you want to hit in the girls position.
First off, your not going to hit a girl with a car. Not really. You cant. That is not a stunt to be messed around with by amatuers. Serious injury, and even death can occur.
There is good news though. Creative shooting and editing will save the day. Just off the top of my head, here is my idea on how to go about it.
Girl walks into street, and we can see the car conming toward her,
cut to
POV of car (you have the camera come toward her, she looks at it scarred)
cut to
Person in car slamming on brakes.
cut to
If you place the camera behind the car, and see it skidding to a stop then have the girl fall into the foreground it will look like the car hit her, she was thrown over the top and lands on the pavment behind it. This way the girl can stand by the camera, and then drop only a foot or so into frame. Add a big thud crash sound effect, and some screeching brakes and your good.
much safer, equally effective. Good luck.
R. Michael
"Luck, is when opportunity, meets preperation." "There are 3 sides to every story. Yours, mine, and the truth, and none of us are lying" -Robert Evans