I personally would forget about using any drone to film a wedding, I would concider it far to dangerous flying near any off the guests its stressfull enough just filming a wedding with a video camera, and I should know I recently retired from the scene after 25 plus years of doing it as a paid professional, there are just too many things that could and do go wrong at weddings whilst filming, and with my video camera on my shoulder and my feet firmly planted on the ground, I was able to make changes instantly and these were not safety concerns, whereas consequently you wont be able to instantly take control any unforeseen safety situation unlike filming on the ground.
The only possible suggestion I would make if you are still wanting to film the wedding, just film a staged shot of the bride and groom well away from all the guest, or preferably on a different day if possible then use that shot as a cutaway shot then edited into the main wedding video if they are having one, whatever you decide to do your number one priority should be think safety first and dont fly close to the couple or guests.