You can however get a nice looking slide show for viewing on a personal computer. Some studios are now offering a CD version of your wedding that consist of various snap shots captured from the video and put onto a slide show presentation. Not all video photographers will offer this service, but I personally find it to be a nice addition. You can certainly help by teaming your photographer up with an eager assistant who is relatively familiar with the guests and doesn't mind prompting for on the spot interviews. A good time for this type of activity is either before or after the formal dances, when people are more relaxed and responsive toward being video taped.
Many studios use background music during various parts of the wedding.
The use of copy righted material is illegal, in part or whole. Asking your video photographer to put in such material would place them in violation. Most studios have purchased rights to royalty free music that work well for wedding material. If you have specific tastes, mention it during the interview and or ask to hear some of the songs. Scheduling is probably the most important part in the wedding day, make a list of the days various events and what you feel to be important in your video.