Serendipity (2001)

On a bustling shopping day in the winter of 1990, Jonathan Trager meets Sara Thomas. Two strangers amid the masses in New York City, their paths collide in the mad holiday rush as they fall victim to a mutual, major attraction. Despite the fact that each is involved in another relationship, Jonathan and Sara spend the evening wandering around Manhattan together, all the while not knowing the other's name. But when the night reaches its inevitable end, the two are forced into determining some kind of next step. When the smitten Jonathan suggests an exchange of phone numbers, Sara balks and proposes an idea that will allow fate to take control of the future. If they are meant to be together, she tells him, they will find their way back into each one another's lives. At least that's the plan. But, no such luck...

Now, ten years later, with 3,000 miles separating them, Jonathan and Sara's lives have taken drastically different courses, and now each is faced with the prospect of marrying another person. Still, they've never forgotten one another. Once and for all, the time has come for them to shake their curiosity and locate each other by whatever means possible. But, can they cheat fame and take destiny into their own hands? Can once-in-a-lifetime happen twice? When love feels like magic, you call it Destiny. When Destiny has a sense of humor, you call it Serendipity.