"How to Get Away with Murder" star Viola Davis will play Harriet Tubman in a HBO movie about the abolitionist hero.
HBO said Monday that the project is based on the biography "Bound for the Promised Land: Harriet Tubman," by historian Kate Clifford Larson.
Tubman was born into slavery in Maryland, escaped in 1849 and led countless slaves from the South to freedom along the Underground Railroad.
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An air date for the untitled project and other cast members were not announced.
The Underground Railroad, a network of secret routes and safe houses for escaped slaves, is the subject of other announced TV projects.
They include a Stevie Wonder-produced miniseries for NBC, "Freedom Run," and a WGN America drama, "Underground," starring Christopher Meloni and Jurnee Smollett-Bell.