Mozart's Sister (fully subtitled) set mainly in the mid-17th century proves rewarding on a limited budget as mercurial French director, producer and writer Rene Feret gets a big assist from his family. Even his wife, Fabienne, helps contribute a finely seamless package as his editor, while his brother (and his son) and himself fill out smaller roles.
It's a less sprawling affair than the widely acclaimed Milos Forman picture (centered on younger brother Wolfgang which hardly referred to Maria 'Nannerl' Anna) which starred Tom Hulce and F. Murray Abraham, similar to a Coco Before Chanel.
Here the sibling prodigies are depicted in their adolescent years in a coach tour with their parents featured in the royal courts of Europe. Nannerl, well-acted by Feret's 15-year-old daughter Marie, apparently had the same musical aplomb as her genius composer brother. She could sing and was strong on the harpsichord and violin. Yet, in blossoming into woman of marital status she wasn't permitted to compose or play anymore.
This lesser known talent ended up having three children but ended up being lonelier than happy during and after an older husband with five children as she endured blindness for the latter part of her life.
The supporting cast in a ensemble (even outside the Feret clan) clearly are committed to their roles, including Marie's younger sister Lisa, is able to impress in a biopic that may seem somewhat cliched at times, but has a splendor that exuded in a production that gets the most out of its locations. The lovely music feels quite authentic even if it's not from another stellar Mozart.