Movies have long treated dance as a shortcut to liberation. Put an unhappy young woman in a studio, turn up the music and give her enough room to move, and chances are she’ll emerge with a better understanding of who she is and what she wants. Mina Shum’s “Whatcha Want” doesn’t pretend to reinvent that formula. Instead, the writer-director finds something more culturally specific inside it, using the familiar pleasures of a dance movie to examine marriage, fidelity and the expectations that can divide generations of Asian women.

The Canadian production had its world premiere Sept. 12 at the Toronto International Film Festival, where Shum has been a familiar presence since her 1994 feature debut “Double Happiness.” Her latest stars Isabella Wei as Yin, alongside Ming-Na Wen as her friend and mother figure Mary Wu, Tzi Ma as her chauffeur Ming, Hugh Tran as husband BT, Helen Dang as dance studio owner Penny and Russell Lee as Alex, a dancer who gradually becomes something more. Shum, who also wrote and produced the film, surrounds Wei with an experienced Asian cast while keeping the focus firmly on Yin’s evolution from dutiful wife to a young woman beginning to define herself on her own terms.

When we meet Yin, she has relocated from Hong Kong to Vancouver while her affluent businessman husband remains behind for work. Five months have passed since she has seen BT, and every promised reunion seems to move further into the future. Yin has almost everything money can provide. She shops, visits spas and is chauffeured around Vancouver by the charming Ming. But the longer she waits for her husband to join her, the more her privileged existence begins to resemble an attractive holding pattern rather than a life.

That arrangement abruptly collapses during a FaceTime call when BT forgets to disconnect and Yin discovers that all that “work” has included another woman. Shum doesn’t linger on the mechanics of the betrayal or turn the movie into a revenge fantasy. The affair instead forces Yin to confront a more consequential question: If the life she has constructed around her husband disappears, what does she actually want for herself?

The answer begins across the street, where a high-energy dance class reminds Yin of something she loved before marriage reshaped her priorities. She eventually finds her way to Penny’s studio, where a small, welcoming group of dancers helps reconnect her with a part of herself she had largely abandoned. Penny recognizes Yin’s ability and pushes her toward an audition for an elite dance program, while Alex introduces the possibility of a relationship built on something other than obligation and financial security.

The contours of that journey are hardly unfamiliar. “Flashdance,” the “Step Up” films and decades of coming-of-age stories have all used movement as a metaphor for freedom. “Whatcha Want” works best when Shum isn’t trying to disguise those influences but instead filters them through Yin’s particular cultural experience. The result is less about whether Yin can dance than whether she can grant herself permission to want a life different from the one she has been told should make her happy.

That conflict becomes most interesting through Mary. Played by Wen with her customary confidence but also some welcome flashes of vulnerability, Mary is more than Yin’s glamorous friend. She is also a mother figure whose instinct after learning of BT’s infidelity is not necessarily to tell Yin to leave. She reminds her of what the marriage provides: security, status and a comfortable life. More provocatively, Mary treats the possibility of a wealthy businessman in Hong Kong straying from his wife as an unpleasant reality that women in their social world sometimes learn to accommodate.

Shum is careful not to turn Mary into a symbol of an “old-fashioned” Asian woman simply standing in Yin’s way. Her perspective suggests something sadder and more complicated. Mary comes from a generation in which financial security, family stability and social expectations could carry different weight in determining whether a marriage was successful. What Yin sees as an unacceptable betrayal, Mary has learned to evaluate alongside everything else a marriage provides.

That distinction gives “Whatcha Want” a layer many of its dance-movie predecessors never had. Yin isn’t merely rebelling against a husband who cheated on her. She is challenging an inherited understanding of what a woman should be willing to tolerate in exchange for security. Her life in Vancouver exposes her to another possibility, one in which personal fulfillment and independence aren’t indulgences but legitimate things to demand for herself.

There is also a satisfying full-circle quality to Wen occupying this role. More than three decades after playing June, a daughter negotiating the expectations of her Chinese immigrant mother in “The Joy Luck Club,” Wen now finds herself on the other side of a generational conversation. Mary is far removed from June, but the casting adds resonance to a film so interested in what gets passed from one generation of Asian women to the next. Wen’s strongest moments come when Mary’s certainty briefly cracks, suggesting that some of the advice she gives Yin may have as much to do with the accommodations she has made in her own life as what she genuinely wants for her friend.

Wei, meanwhile, makes Yin’s transformation convincing without forcing it. She initially plays her with a dutiful restraint, making it easier to understand how someone so young could become comfortable waiting for a husband whose return is perpetually delayed. Once Yin starts dancing, that reserve gives way to a physical confidence that feels like another side of the character suddenly becoming visible. Wei’s dance ability is considerable, and Shum wisely allows the performance itself to communicate much of Yin’s awakening.

Dang brings an infectious energy to Penny, while the dancers surrounding her give the film an appealing sense of community. Their support of Yin is refreshingly uncomplicated. Lee’s Alex provides the expected romantic spark, but Shum wisely doesn’t make another relationship the ultimate measure of Yin’s growth. Replacing one man with another would hardly qualify as liberation. The more satisfying romance here is the one Yin rekindles with dancing and, by extension, with herself.

“Whatcha Want” remains an unabashedly lighthearted film, and that occasionally limits how deeply Shum can explore some of its more provocative ideas. BT’s betrayal, Mary’s complicated worldview and Yin’s transition from dependence to independence could each sustain a thornier drama. Instead, Shum largely keeps the film moving toward the emotional uplift expected of the genre. The destination is rarely difficult to predict.

But familiarity isn’t necessarily a weakness when the person occupying the center of that familiar story has so rarely been allowed to do so.

Young women have spent decades watching movie heroines discover themselves through dance. Asian women have far less often been given the opportunity to see themselves at the center of that particular fantasy, especially in a story where cultural identity matters without becoming the character’s sole defining characteristic. Yin gets the betrayal, the dance crew, the possible new romance, the big opportunity and the joy of discovering that she might be capable of building a life around her own desires.

That makes “Whatcha Want” less revolutionary than quietly corrective. Shum isn’t reinventing the dance movie. She’s expanding who gets to have one.

Grade: B–

This review also appears on Character Media