Serendipity (2001) on Netflix

While each grabbing for the last pair of black cashmere gloves at Bloomingdale's in New York, Sara Thomas and Jonathan Trager meet. Despite each being in a relationship with other people at the time, they spend an amazing afternoon together. Jonathan wants her contact information "just in case", but Sara, a fatalist, plays games of fate with Jonathan to determine if they are indeed meant to be together now or in the future. At the end of the day, the two only have a few pieces of information about the other, which does not include the other's last name or telephone number as they part company. One of Sara's last games of fate that day has each leaving a identifier to the other (Jonathan and Sara scrawl their full name and telephone number on a $5 bill and a used book, respectively), which if each comes into the possession of the other by happenstance, Sara believes they are meant to be together. A few years later, Jonathan is engaged and soon to be married to a woman named Halley. Concurrently, Sara, now living in San Francisco, has too just gotten engaged to Lars, a new ageist musician. However, the thought of Sara is foremost in Jonathan's mind. Sara too is thinking about Jonathan rather than Lars. As Jonathan's wedding day approaches, Jonathan, with his best friend Dean at his side, uses a methodical approach to locate Sara. On the other hand, Sara, with her best friend Eve at her side, uses a more fatalistic approach to finding Jonathan. Will either of their search efforts result in success, especially before Jonathan's scheduled wedding?