Not only wedding, graduations and christening could by recorded. Also other moments are worth recording for later viewing.
Do you have a puppy at home and you want to keep as playful and funny it was and were exploring the world? I will meet with you for several times and I'll record nice klip about your dog.
Are you in love, you have plenty of time till your wedding, but you want to romantic clip of you two? There is no problem to make a short clip to your favourite song.