Una vez en una nana

The fifth-grade chorus of PS22 on Staten Island, N.Y., became a YouTube sensation when their teacher started posting videos of them singing. Their rousing renditions of pop songs soon earned them a national legion of fans, as well as the attention of Academy Awards producers. This joyous documentary follows the talented and diverse group of kids and their energetic instructor, as together they tackle creative differences, lost voices, and homesickness on their way to appearing in the finale of the 2011 Academy Awards ceremony. The transformative power of music shines throughout.