Two strangers meet at a wedding, and the next day find themselves — in both senses of the term — on a car trip, guided by a mysterious GPS, through apparently endless unoccupied rural landscapes, stopping at doors that appear unconnected to any structure but turn out to be portals to the past. The journey, with a script by “The Menu’s” Seth Reiss and directed by Kogonada is romantic in the dictionary meaning of the term, “characterized by themes of love, emotion, imagination, and nature.”

Margot Robbie plays Sarah, and Colin Farrell, who starred in Kogonada’s “After Yang,” plays David. They both arrive at the wedding unaccompanied. And, as we will learn, they both arrive in vehicles provided by a very quirky firm simply called The Car Rental Agency, “specializing in emergencies.” The agency, which operates in a gigantic warehouse with just two cars, 1990s Saturns. Its two proprietors (Kevin Kline and Phoebe Waller-Bridge) sit behind a table and, when David shows up having found his car with a boot for unpaid tickets, a flier for the rental company conveniently nearby, they have a file on him. He initially turns down their GPS, insisting that he can just use his phone. But they warn him that phones can fail, and it is clear they won’t let him go without the GPS, so he takes it.

The GPS works normally on the way to the wedding, where David and Sarah meet, drawn to one another but hesitant. It seems like a missed connection. The next morning, the GPS (voiced by Jodie Turner-Smith, Farrell’s co-star in “After Yang”) invites David on an adventure and then directs him to get a “fast food cheeseburger.” Sarah is there, also eating a cheeseburger. As they leave, her car won’t start and the GPS tells him to give her a ride. The big, bold, beautiful journey begins.

The first doorway is mostly to get them used to the idea, and then each successive doorway takes them to more complicated and painful memories. Two of particular impact show us separate past encounters that intersect in meaningful ways. Others allow David and Sarah to understand their parents (sensitive performances by real-life couple Lily Rabe as Sarah’s mother and Hamish Linklater as David’s father). They get to glimpse how their time at the wedding could have been different. The one audience may respond to the most viscerally, because it’s high school, takes David back to his performance at age 15 in the lead role of “How to Succeed in Business Without Really Trying.” The details of these encounters are wisely chosen and performed with the delicacy and authenticity of Kogonada’s previous films. The affection for theater kids (notice the posters in Sarah’s high school bedroom and the song David sings in the car) underscores the importance of finding the truth in stories.

Cinematographer Benjamin Loeb (also of “After Yang”) brings a poetic sensibility to the images, enhancing the fantasy element of the story but grounding it (literally) in the landscape. The shape and bright primary colors of the umbrellas are striking, and overhead shots evoke a heroic adventure. The story’s encouragement for those who have the courage to take a risk and change old patterns has a quiet optimism that may send some of us to open a few bold and beautiful doors ourselves.

Parents should know that this movie includes many uses of the f-word, some sexual references, and a brief, non-explicit sexual situation, a sad death of a parent, and a medical issue involving an infant.

Family discussion: How are Sarah and David alike? How are they different? How did what they learn about themselves change the way they thought about each other? What moment in your life would you want to go back to in order to learn from it?

If you like this, try: “9 Days” and “All of Us Strangers”