[edit] This is pretty long, but I wanted the OP to understand some things about how to produce a great wedding video.[/end edit]
I've shot quite a few weddings. Here are some thoughts.
1. Just because you own a drone doesn't mean it is the right tool for the job. I know you want to use your new toy, but you need to think instead of what technology and techniques will provide a great result for the bride and groom (and their families!).
2. Have at least three cameras going during the critical portions of the ceremony, and also at the reception during the key events, including toasts. In a live event, people move in front of cameras; cameras run out of memory or battery; tripods get knocked; and much more. You can always cut to another camera when something happens. On one occasion, with four cameras going, I only had one camera that gave me usable footage during a critical part of the ceremony.
I manage all cameras myself, and during the ceremony when there is singing or someone is doing a long reading, I will walk over to the side cameras and make sure focus & exposure are still OK (manually adjust for the wedding gown, using zebras, so as not to blow it out). The wedding party sometimes moves around, so I also quickly check these other "unmanned" cameras to make sure the framing and focus are still correct.
3. Use MANUAL settings, or really bad things will happen, like focus popping in or out.
4. Get a sound feed directly from the DJ or event manager (whoever controls the sound board). Plug into the board and record that audio onto a device that accepts line level input (I use a Zoom audio recorder).
For a wedding,
sound is more important than visuals.
5. Use the drone only for simple establishing shots. Do NOT use it during any critical part of the ceremony. If you want to have drone video of the "ceremony," shoot instead while the still photographer is arranging the wedding party either before the ceremony or after the wedding. If you only include drone video that is shot from the wedding party and beyond (i.e., no one from the audience in the shot), it will look like it was shot during the ceremony. If the still photographer isn't going to line up the wedding party at the altar, as they were during the ceremony, you can ask the bride and photographer if you can get everyone to line up there for a moment so you can take a drone shot.
6. Consider using the drone for the later stages of the reception, if it is outside. One of the toughest things to photograph are cocktail hour circles where, if you photograph from outside the circle, 2/3 of the people have their backs or sides to the camera. If you instead pose everyone, you end up with a lot of phony-looking photos. One solution is to photograph from directly above. I prefer to use a GoPro on a long pole because it is very non-obtrusive compare to a drone, and I can pick up the pole, take a few minutes of video, and then put the pole down and resume taking video with other cameras.
One advantage to using the drone during the reception is that it is usually really loud, and no one will notice the drone.
Here are just a few more things to think about:
The problem with taking drone video is that there is a LOT of setup getting the drone in the air. More important,
it is VERY difficult to react to what is going on in front of of you. Remember, this is "run 'n gun" video, meaning you have to deal with whatever happens in front of the camera, and while there are lots of set pieces in a wedding which you can anticipate, you never really know what is going to happen. For instance, in the last wedding I did, the
groom (not the bride) kept breaking down and crying while trying to recite his vows. The bride was cracking up over the unexpected event. Fortunately, I had one camera facing the groom, from the side, and a similar setup facing the bride. I got it all (as you can see in the link below).
Here is a simple highlight music video I created from the last wedding I did a year ago. This is a private video, so I'll only keep this up for a few days. Note how many little things happened that I could not possibly have anticipated, but which I reacted to right away. If you are trying to pilot a drone and not have it crash or cause a problem, there is no way you are going to be able to see and react to these things. What's more, while you are doing all the setup and work to get the drone safely into the air, you'll miss all sorts of things that you should be capturing.
BTW, as others have said, use music chosen by the bride. The music you'll hear when you click on this link was most certainly not the music I would have used (the music is fine, but the lyrics are really weird for a wedding piece), but this is what they wanted:
Chronological Wedding Highlights