Stories centered around the American immigration experience in many ways seem akin to the creation myths of much older countries. But whereas gods and goddesses may have divined their countries from the stars or sea or some other mysticism, America was built slowly over time. Be it migrant Asian natives who would form the beginnings of Native America, wandering from a now non-existent peninsula 24,000 years ago, or the slow but steady trickle of peoples from every nation on the planet seeking shelter, work, and freedom. Nothing inspires American pride more than tales of how we got here. John Crowley‘s Brooklyn isn’t exactly a creation story, in fact, it takes place in the ’50s years after the immigration boom to America, but this story—adapted by Nick Hornby from Colm Tóibín’s novel—encompasses that very real part of being American: balancing history with the future and learning to belong.

The young woman walking that fine line is Eilis Lacey (Saoirse Ronan), an Irish girl who is given the chance to move to America when job prospects in her small Irish town run dry. Her part-time job working in a convenience store is easy to say goodbye to—what with her boss being a stuck up gossip and all—and even her friends have romantic prospects and more contentment in their small town life. The hardest part for Eilis is leaving her elder sister Rose (Fiona Glascott) behind with their mother Mary (Jane Brennan), but she is assured by Rose that this is the right decision.

So Eilis departs, traversing literal rough seas on the voyage to America. Her bunkmate aboard the ship advises her, giving her a crash course in how to survive being alone in America so far from home. But nothing really prepares Eilis for just how homesick she becomes. Her boarding house-mother, Mrs. Kehoe (Julie Walters), holds nightly dinners, and these scenes are by far the most hilarious of the film, perfectly showcasing the variety of young women making their way in America, from old-fashioned to flashy and stylish. Mrs. Kehoe is the perfect blend of old Irish propriety curbed with sharp modern spunk and the way she chides Eilis’s more rambunctious cohorts and advises the girls on their skin regimens is just one of many great examples in the film of the way the women around Eilis are her greatest support system. When Eilis’s homesickness pushes her to sullen depression it prompts her new boss, Miss Fortini (Mad Men‘s Jessica Paré), to call in the priest who sponsored Eilis’s trip to America. Jim Broadbent plays Father Flood, who enrolls Eilis in a bookkeeping school in order to give her something to focus on to distract her from her sadness.

The plan works remarkably and as Eilis begins to invest in her future she starts to let down her guard. At a church dance one Saturday night Eilis is asked to dance by Tony (Emory Cohen), a young man who is instantly quite taken with Eilis’s quiet charm and fierce intelligence. He pursues her vigilantly, and to Eilis he is so completely American. His family is Italian, but their cultural background differences only make them more drawn to one another. Eilis’s spirits raise considerably—her wardrobe even brightens, and indeed the costume design is among the many details that elevate the film—and she and Tony allow themselves to fall head over heels.

But when tragedy strikes back home in Ireland, Eilis is thrust back into her previous world, and when she returns home she has to face her old life as a new person. Ronan magnificently portrays Eilis’s depth of feeling and inner struggle with choosing what sort of life she wants to mold for herself. Now an independent young woman, she finds herself to be more desirable than ever back home and she is given very real temptation in the form of Jim (Domhnall Gleeson), a tall and successful young Irishman who seems to have the same sort of ambition as Eilis combined with a love for their home country.

Eilis’s decision essentially boils down to choosing whether she wants to choose to be Irish or Irish-American, each choice attached to a very different man who promises a very different future from the other. This conundrum feels so very close to the heart of American patriotism. That those who formed this country, whether it was on the Mayflower or many years later as an immigrant, each had to choose to be American. Crowley keeps Eilis’s decision harrowing to the end, maintaining that it isn’t necessarily about choosing correctly, as there is no clear path, it’s about choosing one’s own identity.

Brooklyn is at once inherently American and incredibly multi-cultural, showcasing just how intricate and emotional the immigration experience was for many who came to this country. That it uses the perspective of an empowered and vibrant young Irish woman is what makes Brooklyn an excellent story. It’s an across-the-ocean love triangle yes, but it’s the battle within Eilis that is most interesting. Yves Bélanger’s cinematography makes 1950’s Brooklyn both exciting and alien at first but ultimately more romantic as Eilis’s experience there changes. The imagery of Ireland feels much more spacious, open and home-like. Ultimately the film is beautiful, but it’s Ronan’s sparkling eyes and subtle expressions that cause not only Tony and Jim to fall in love with her, but in fact everyone else in the film and all in the audience as well.

A perfectly crafted romance and pride-inducing immigration tale, Brooklyn feels very much like reading an engaging book. One you just can’t put down and immediately want to re-read once it’s finished.

Weaving a young Irish immigrant’s story into a heartfelt, romantic drama, Brooklyn exudes an entire diary’s worth of emotion with a light-handed touch. Based on Colm Toibin’s 1950s-set novel of the same name, Brooklyn follows Eilis Lacey (Saoirse Ronan) as she leaves her home in Ireland for a new life in America, torn between where she’s comfortable and where she finds opportunity. She arrives as a timid but amenable girl, unsure of what to say or simply too afraid to say it. Director John Crowley (Boy A, Closed Circuit) portrays a world in which the people around Eilis are consistently decent. In Brooklyn, the biggest obstacles facing new immigrants are loneliness and having been displaced.

After arriving in America, Eilis struggles to discover her sense of belonging. Stuck in a boarding house for Irish women run by Mrs. Kehoe (a wonderfully snappy Julie Walters), Eilis unhappily toils away at a department store, silently crying when she opens letters from home. It isn’t until she meets Tony (Emory Cohen), a handsome and soft-spoken Italian plumber, that Eilis starts to smile. His courtship of her is palpably sweet. As she finally opens up with him, talking up a storm through their first dinner together, Eilis’ restrained glee is contagious.

Nick Hornby (An Education, Wild) peppers the film with eloquently poignant lines of dialog. When Eilis first meets with the Irish priest (Jim Broadbent) that sponsored her voyage across the Atlantic, he tells her that homesickness is like any other malady and that it can linger for a while before getting passed onto someone else. The understated manner in which the script allows Brooklyn’s characters to articulate their hopes and fears creates earnestly powerful moments. There’s only one short romantic speech in the film and damned if it isn’t a more genuine expression of love than anything to have come from a Nicholas Sparks adaptation.

In a role perfectly suited to the emerging 21-year-old Irish star, Saoirse Ronan captivates in the part of Eilis. She conveys the anxiety of unfamiliar situations, as well as the joy of developing a real connection to others. Her growth from deferential girl into self-assured woman is a gradual process, enlivened through the subtlety of her acting. It’s an outstanding performance, rich with sentiment and sweetness. Emory Cohen’s charismatic presence is a treat, too, providing an affable quality in support of Ronan’s more serious demeanor. His sincerity as Tony is appealing without becoming preposterous. Even Domhall Gleeson, whose role as a potential new suitor in the story should elicit scorn, proves to be delightful.

The section in where Eilis gets forced into returning to Ireland adds complications to a film largely missing them. She returns as a radiant figure, her bright, American clothes distinguishing her from the crowd. Often, Crowley positions Eilis as a splash of color within a muted frame. As Eilis wavers on her fate, Brooklyn refuses to show its hand. It’s easy to imagine different audiences leaning towards separate conclusions from this love triangle, but its ending is a fitting, beautiful final note.

There’s nothing revolutionary about the love story depicted in Brooklyn; however, the restraint it shows with its dramatic tension makes the film a pleasant, tender drama. In fleshing out Eilis as a woman with a full life who aspires to more than just marriage, she becomes an endearing protagonist in a genre that often lacks those. Brooklyn is a gorgeous illustration of an immigrant’s experience in the mid-20th century, complimented by the touching romance at its core.

Just days after its Monday night Sundance Film Festival premiere, Brooklyn has been scooped up for release by Fox Searchlight. Variety reports Searchlight’s $9 million purchase came out on top of a bidding war involving The Weinstein Company, Focus Features and Roadside Attractions. The John Crowley-directed period piece was written by Nick Hornby, adapted from a 2009 novel by Irish writer Colm Tóibín. Saorise Ronan stars in a role that some are already touting as a potential 2016 Oscar contender.

Early reviews of Brooklyn have been mostly strong, with some comparing the film’s mix of comedy, drama and romance against the backdrop of an immigrant’s story to In America. Following young Irish immigrant Eilis Lacey (Ronan) as she navigates 1950’s Brooklyn, finds new love, and is forced to choose between two countries. The Guardian’s Jordan Hoffman wrote, “First half of Brooklyn is just about perfect. Loses considerable steam toward the end, but still good overall.” Tim Grierson of Paste Magazine calls Brooklyn, “The Immigrant meets The New World with the sweetest human beings ever.”

Brooklyn also stars Domnhall Gleeson, Emory Cohen, Jim Broadbent, & Julie Walters, and will likely come to theaters late in 2015. The movie continues to screen through this weekend at Sundance 2015.