John Carney 'Begin Again' or 'Once's' director embarks on another film where the spotlight is the music. 'Sing Street' tells the story of Cosmo (Ferdia Walsh-Peelo) a child growing up in Ireland in the 80s and decides to set up a music band to impress the girl he likes, Raphina (Lucy Boynton), who is a beautiful model. His older brother, sho is a disaster, will try to advise him the best he can, but the girl has a boyfriend and this process will be as complicated as beautiful.

Maria Doyle Kennedy ('Jupiter Ascending', 'Albert Nobs'), Aidan Gillen (Baelish in 'Game of Thrones'), Jack Reynor ('Transformers: Age of Extinction', 'Macbeth') are part of the actors that complete the cast of 'Sing Street' becoming in one of the best films of Sundance Film Festival.