Uncertainty (2009)

Every choice has a consequence. But what if the flip of a coin could trigger two separate but parallel destinies? Bobby (Joseph Gordon-Levitt) and Kate (Lynn Collins) are a young New York couple at a crossroads whose lives are about to take very different directions. A seemingly ordinary July 4th is cleaved in two by the flip of a coin. One path leads them to gentle discoveries about family, loss and each other on a visit to Brooklyn, and the other plunges them into an urban nightmare of pursuit, suspense and murder in Manhattan.