The true story of Emmett Till and his mother's fight for justice after his murder is being retold in an emotional new film.

On Monday, MGM Studios debuted the first trailer for Till, which is about the 1955 lynching of a 14-year-old boy, Emmett, in Mississippi.

Emmett, who was from Chicago, was visiting relatives in Mississippi when a white woman (Carolyn Bryant Donham, then 21) falsely accused him of whistling at her and attempting to grab her hand and waist while inside a grocery store.