Wedding Tales That Prove Love Conquers All

June 30 -- — They say love can conquer all, but how about a wedding in which every single thing seems to go wrong?

In "My Big, Wild, You're-Not-Gonna-Believe This Wedding" on Monday night's Primetime at 10 p.m. ET, ABCNEWS' Diane Sawyer takes a look at four very different couples with some unconventional stories about how they made it to the altar.

Ami Schmitz and Brad Levine were one couple who had good reason for some pre-wedding jitters.

First, Schmitz noticed something amiss with her engagement ring.

"I look down and I'm like 'oh my God, oh my God the diamond, the diamond is gone! Out of my engagement ring! Gone!'" Ami Schmitz recalled. "I go to pick up my wedding dress. Sure enough the dress was about an inch and a half too short."

And it turned out, that was just the beginning. The florist's shop they had chosen burned down and two wedding halls they selected went bankrupt. But there was a storybook ending on the day of the wedding.

"After all the craziness, this beautiful light was cast through the tent and it was just magic," Schmitz said.

An Unlikely Pair

Then there was a wedding between Laura Van Mannen and Bryan Simms — an unlikely couple from very different worlds. Simms went to prep school, and practiced old school manners while Van Mannen was street wise, with a seriously funky attitude. She is a white woman who is Jewish, with a gay father. He is an African-American man who was raised Baptist.

They came together in what could be described as a big, fat, Jewish, Baptist, white, black, straight, gay, dance-'til you drop wedding. For some, the differences between the two families was a surprise.

"I never mentioned race," Van Mannen said.

But the couple say that with all their differences, they are the future of what weddings will be all about.

"When you see this woman walking down this aisle, as beautiful as you could ever, ever imagine, this woman here — for a number of reasons — makes me a better man," Simms said.