JOHN CARNEY’S 1980s-set “Sing Street” is like a barnstorming tribute group. It’s crowd-pleasing, heartwarming, hits all the right notes, and is eager to please. It’s easy to love, even if it’s not quite playing originals. This toe-tapping musical about a Dublin schoolboy who wants to be in a band and the lost girl he falls in love with is certain to be successful for U.S. distributor The Weinstein Company, which will stress the screen and stage success of the director’s “Once” and “Begin Again” on its commercial release.

    And yet, even as the film sails along on 80s nostalgia gags and infectious original songs, it’s clearly a confection without the emotional punch — or technical prowess — of the films in whose giant footsteps it follows, most palpably “The Commitments,” but also “Billy Elliot.” This is no Roddy Doyle at work. At the end of the day, it isn’t so much the boy-girl romance that gives “Sing Street” its authenticity, but the love story between Conor (newcomer Ferdia Walsh-Peelo) and his lost-soul brother Brendan, played most likably by Jack Reynor.

    The boys’ parents (Maria Doyle Kennedy from “The Commitments” and Aidan Gillen from “Game of Thrones”) have fallen on financial hard times in the 1980s recession and have moved Conor to a sink school in inner-city Dublin’s Synge Street (pronounced “Sing”). It’s a tough adjustment for the soft-natured Conor, and he comes up against both the Christian Brothers who run the school with fists of iron and bullies from the local estate. But things look up when he spots the gorgeous Raphina (Lucy Boynton), who is set to emigrate to London where she wants to become a model.

    Inspired by Rio in Duran Duran, Conor persuades Raphina to be the girl in his band’s next video. Now he only has to form one, knocking on doors in a “Commitments” tribute with his pint-sized manager Darren (Ben Carolan) until he finds the multi-talented rabbit lover Eamon (Mark McKenna) and forms the basis of Sing Street, who perform original songs composed by Carney and Gary Clark. The first, “The Riddle of the Model,” is particularly amusing, but fortunately they get better, riding a crescendo to the final show-stopper at the school disco.

    More emotionally absorbing, however, is the relationship between stoner Brendan and his little brother. Brendan has dropped out of college and sits at home listening to his parents argue; a music fanatic, he sees potential in Conor but also an opportunity for the young boy to leave Dublin behind, even if it means they separate. With the film dedicated to brothers everywhere, there seems little doubt that this is the true heart of the piece.

    Performances in “Sing Street” are strong across the board, with Reynor providing a solid grounding for the younger actors to play against. Newcomer Walsh-Peelo is perfectly cast and very confident, both in front of the microphone and as a sweet-natured teenager. It’s a lovely role. Boynton, however, can come across as less assured, and the romance isn’t as captivating as the film’s other elements.

    Apart from a few funny moments with video cameras, stagings are routine, if not ordinary. Set in 1985 Dublin, “Sing Street” has poured its effort into the music and visually, the film is unremarkable, letting the songs do the talking. Carney certainly knows how to knit together a soundtrack that elevates. “The Commitments” moved successfully onto the stage, as has Carney’s own “Once,” and there seems no reason for “Sing Street” not to do the same.

    The movie is now being screened in Hong Kong. (SD-Agencies)