There's a lot of pressure on weddings to be "perfect" and "the best day of your life," which tends to be a recipe for melodrama when things don't go exactly as planned. But when you gather everyone you know in one location with food, booze, and cripplingly high expectations, something is bound to go wrong. But as long as you end up married at the end of it—that should be considered a successful wedding.
1.) From SoConfused_Again:
Our wedding was on a beach. One of our teen nephews was filming it for us. There are a number of times during our vows where the camera is not on us at all and you can't hear us talking. This is because a woman in the water (waist deep) next to us was watching. She was topless. So he kept panning towards her, and his mom kept telling him to knock it off.
We didn't know this until we played it back (at our reception back home) for the whole extend family and all our friends that couldn't make it. Made for a bit of an embarrassing time for him when it played.