Block the shot. Make sure that everyone in the scene is in place.
Place the video camera in the location from which it will be shooting.
Turn on the camera and look through the view finder.
Find the subject that will be in the foreground of the shot.
Focus on the object in the foreground. Some video cameras have an o-ring on the lens that lets the user control the focus or depth of field.
Record the shot once the depth of field is adjusted accordingly.