Vudu has Black History Month related titles for $0.99
Betty & Coretta
http://www.vudu.com/movies/#!content/418729
Black Wings
http://www.vudu.com/movies/#!content/430835
Breath of Freedom
http://www.vudu.com/movies/#!content/515875
Legend of Lead Belly
http://www.vudu.com/movies/#!content/654718
MLK: The Assassination Tapes
http://www.vudu.com/movies/#!content/409603
Seizing Justice: The Greesboro 4
http://www.vudu.com/movies/#!content/409625
Toni Braxton: Unbreak My Heart UV
http://www.vudu.com/movies/#!content/746756