"Prior to actually getting thrown out of the car, it's best to prepare on your own. Go into a quiet room and spin in circles looking down at the floor and up at the ceiling in order to get ready for the spin that you'll get thrown into once you hit the floor.

"Then, take yourself to your nearest slabs of nice, clean concrete and practise throwing yourself elbow first on the floor.

"This way you can mentally prepare for the impact, so it's not a shock when it happens. Obviously you've got to make sure you have some decent protective padding on first.

"Once you've done the initial preparation, you need to find a good smooth surface to land on. If the surface is rough, there's a very high chance you will tear your clothing and really injure yourself.

"The car itself needs to have a wide door and, more importantly, a reliable driver that you can trust. If you're going to play up for the cameras, choose a specific location so the fall can look even more dramatic.

"Before actually going ahead with the jump, drive along the road a couple of times, opening the door and checking for the best spot to land on. Shout at the point where you're going to jump, so everyone around knows where and when it's going to happen.

"Good padding is essential. Ideally, your whole body will be covered, preferably starting with a pair of jeans and a decent jacket. Underneath that, you'll need padding on your elbows and knees - basically every bony bit of your body needs protection.

"When it comes to being kicked out of the door, think of how a pen or pencil rolls. That's what you have to emulate. Throw yourself out, leading with your shoulder or arm. If you lead with your hand, you'll tear all of your skin and you won't complete the roll properly.

"Your arm should contact the surface and throw you into the spin. The hardest part is actually stopping once you've begun the whole thing. You have to keep going, let your energy just carry you and slide along. And remember that the further you go, the better it's going to look on screen.

"I've done this stunt loads of times, usually playing a villain being manhandled out of the car. I was recently thrown from a car and rolled along outside the front of The Queen Vic in Eastenders. It's also a pretty regular stunt on The Bill, but I tend to co-ordinate those ones now and let others do the rolling."