Is it possible to do wedding photography on a budget and how?

I had a plain 35mm camera. My wedding gift for dear friend was too take photos. The part that they liked better than a profession photographer was the one question I asked, "Am I allowed to jump around any where I see a good shot during the wedding?" After I got my "yes," I just made it clear that you focus on wedding & pay no attention to me darting around. Since I was a friend to both parties, that gave me the edge to know what shots & what angle would be important. (Like kneeling in between them w/ upward face shots as they held hand reciting vows.) And b/c I had clearance to be any where, I jumped in, got the shot & was gone so that intrusion was hardly noticeable. Later, I had film developed to disk. Put them in computer to crop & lighten or darken. Gave them original disk & then mine with the edits so that they could pull off what they wanted in whatever size they choose. I've done this twice (b/c the 1st couple recommended me to the 2nd). I learned this from a friend who had done the same for my wedding. And jumping in (as opposed to setting up every shot) really allows the freedom of the moment to come through. / So was that your question? / I think this makes great gift & budget savings for friends.