Mockingbird Don't Sing is a 2001 American independent film based on the true story of Genie, a modern-day feral child. The film is told from the point of view of Susan Curtiss (whose fictitious name is Sandra Tannen), a professor of linguistics at University of California, Los Angeles. Although the film is based on a true story, all of the names are fictitious for legal reasons (e.g. the pseudonym "Genie" has been changed to "Katie"). The film was released to US theaters on May 4, 2001. It won first prize for best screenplay at the Rhode Island International Film Festival (tied with Wings of Hope).

Plot

In Los Angeles, 1970, Katie Standon, a girl who has been imprisoned in her room (and without any human contact) since the age of one, is now thirteen years old. Her mother Louise, who has cataracts, has taken enough abuse from her domineering husband Wes; she gets her son, Billy, a few years older than Katie, to help her and Katie escape their home.