This film about one of the classical music world's genuine greats is a mostly factually accurate re telling of J S Bach's life starting at age ten . It hits most of the highlights and saddest lows of Bach's painful and yet interesting life with an attempt , usually successful , of being not only truthful but also modest . It is in stark contrast to other films about classical musical geniuses like Amadeus , which may be to some more entertaining , but also have multiple scenes that are , as far as historians know , pure fiction . Il etait une fois Jean Sebastien Bach is in French but the subtitles are both easy to read because of their large size print , and accurate translations into English . The music is wonderful ! Every single piece , as befits an entire film about one of the greatest classical music composers ever , is a J S Bach composition . Several of the locations , in the movie , are even the original spots that J S Bach himself was at . Another honest attempt by this filmmaker to be truthful and accurate to the facts of Bach's life . If you want to learn about J S Bach's life , joys and woes and , of course his wonderful music this film will give you that . Despite the criticisms of some reviewers it is a solid , admittedly not spectacular , but good film . Agreed none of the performances are award worthy but again it tells his story accurately and gives quality renditions of Bach's music . It achieves the reasonable if modest , but still worthwhile aims for a film about a musical great - to tell enough of the person's story truthfully that the viewer learns about the person's life and hears some of his music . Few other music composers have as many pieces of their music performed as often every year for over two centuries on different continents as J S Bach and this is a good introduction to the man , his life and a small , but good , sampling of his music .