“`Til There Was You” tells the story of Gwen Moss (Jeanne Tripplehorn) and Nick Dawkan (Dylan McDermott) who literally bump into one another when children — and then whose lives take completely different directions. They remain utterly ignorant of the other — even though their friends meet, their acquaintances mingle, and their own paths blindly cross, notably centered around former child star Francesca Lanfield (Sarah Jessica Parker) and the apartment complex La Fortuna, where Gwen resides. Though the two grow up absolutely wrong for one another, they nonetheless keep altering the course of each other’s lives without knowing it — or each other.

If they are to meet, will they be ready?