Those that get pissed off do not get hired. Use the tips above passerbys and to explain to them how they will handle questions and what your expectations are. The bottom line is that when they are on your time, your company is the one they're permitted to discuss.
As an example, if you are doing a shoot at a corporation and you hear the Manager of Marketing discussing they need another video for a related service or product, you need to call the person that hired you (if they aren't already on the shoot) when you get a break to notify them that you just overhead this information.
The essence of corporate video production has changed considerably since the advent of these types of video production in the Internet and the early days has had by far and away the most significant effect on the process, and the results from this action.
Green screen is not new technology, of course! Technology has ramped up using green screen in entertainment and news, but there's a place for it in the world as well. Adding in a background and keying the screen out can set the mood for your movie. You have so many more choices for backgrounds that what you're most likely to find a office that is standard around.
If you are shooting at don't even consider promoting your business. This is a situation where you should have a small number of cards additional info to give prospects that are interested in learning more about wedding video services.
If you need help figuring out how short or long your video should be, consider the pop song or music video. Most of them are that 2-4 mins long. If you want viewers to watch the whole video, you'd emulate music producers so far as length is concerned. People will not watch see this website a movie that is longer than 4 minutes, believe look what i found me. Why? Because there is a storm of video that raging across folks and the net are going to want to watch other stuff.
Remember I do things. My clients always get the value of my work at every step of the job and my speed is lower than production companies within my location. Clients will pay as you provide quality work. Observe that.