For writer/director John Carney, music is as vital as drama in his cinematic endeavors. For “Once,” the helmer found lo-fi love on the streets of Dublin, celebrating two amateur musicians finding love and communication through performance. In “Begin Again,” Carney inched toward mainstream interests with name actors and a broader storyline, but still made time for songs to carry the viewing experience. For “Sing Street,” Carney returns to his indie roots and the soothing ways of musical expression, crafting a loving ode to joys of garage bands and pubescent interests. A spirited, hilarious movie, “Sing Street” is Carney’s best work to date, smoothly merging his storytelling and jukebox obsessions. Even with a few rocky moments, it all works with irresistible confidence. Read the rest at Blu-ray.com