Multiple Takes
No matter how short your final video ends up, you should always shoot multiple takes of key scenes. There are a number of reasons for this, but the most basic is that you can’t always tell in the viewfinder if the shot looks like you want it to. If you get a few takes, you’ll have a much better chance of success. In addition, shooting a scene in one take means you only have one type of shot. It’s very possible that the scene would look better at a slightly different angle or with the actor stressing a different syllable in one of his lines. Of course you shouldn’t shoot every shot multiple times, because that would waste time and tape. But if you have a complicated scene with a lot of room for error, multiple takes can save you from reshoots later on.