My friend asked me to video tape his wedding. I have minimal experience behind a video camera but I'm comfortable with technology. I'm mostly looking for composition and logistical advice on filming a wedding.
I think my friend's expectations are low but if I'm going to do this I want it to be at least worthwhile. Thus I have read that besides keeping the couple in the viewfinder the next most important aspect to shooting a wedding is to have a mic on the groom for the ceremony. I don't have a wireless mic but I figured I would put an iPhone in his pocket with the headphone mic pinned under his lapel and sync the audio in post. Is there anything else I'm missing?