Letitia Wright Joins Cast of 'The Silent Twins' The 'Black Panther' star will appear in the thriller, which is based on the true story of June and Jennifer Gibbons.
The Gibbons sisters became known as the Silent Twins because they refused to communicate with anyone but each other.
Wright is joined by Tamara Lawrance, who starred in 'The Long Song.'
The drama will begin shooting in April of this year.