Sound of My Voice
- Ano: 2011
- País: United States of America
- Gênero: Ficção científica, Drama, Mistério, Thriller, Terror
- Estúdio: Skyscraper Films
- Palavra-chave: journalist, manipulation, hidden camera, teacher, school, los angeles, california, hand clapping game, cult leader, documentary filmmaking, oxygen tank, secret handshake
- Diretor: Zal Batmanglij
- Fundida: Brit Marling, Christopher Denham, Nicole Vicius, Davenia McFadden, Kandice Stroh, Richard Wharton