Watch VoirFilms. The Indomitable Bow is a unique portrait of Mstislav Rostropovich, a formidable personality as well as a complex, deeply political musician constantly engaged in a whirlwind of activities. Including unreleased documents, archive films, interviews and concert performances from this key figure of the 20th century, The Indomitable Bow is a remarkable testimony of the life and work of the legendary Slava