A important videography tip when shooting a wedding is to check out the wedding locations, such as the church, house, and reception areas beforehand, if at all possible. This gives the videographer the chance to asses the power points for recharging, lighting, and layout.
Long before the actual wedding service, contact the clergyperson to find out the congregations wedding videotaping guidelines because you do not want to intrude upon the service. If they have these guidelines in writing, be sure to request a copy.