Amma Asante who did Belle(I don't know if that fits your criteria)
9. Amma Asante
The self-proclaimed “director in high heels” will bring a fascinating true story to the big screen later this year with her second feature film,
Belle, starring Gugu Mbatha-Raw and Emily Watson. Set in the 18th century, the British drama is inspired by the life of Dido Elizabeth Belle, the illegitimate mixed-race daughter of a Royal Navy admiral. Asante also recently landed her first big Hollywood feature and is set to direct a
Fatal Attraction-type thriller called
Unforgettable.
some others
http://www.pastemagazine.com/blogs/lists/2014/03/10-black-directors-to-watch-in-2014.html
3. Nailah Jefferson
Jefferson’s directorial debut,
Vanishing Pearls: Oystermen of Point à la Hache, premiered at the Slamdance Film Festival this year and told the story of the crippling effects the 2010 BP Oil Spill on bayou communities in Louisiana. The powerful documentary drew on scientific, social and personal testimonies to reveal the blatant classism and racism that led to the devastation in Point à la Hache and other fishing towns. The film plays like an
Erin Brockovich story, with insurance lawyers and BP representatives using power, finance and influence to wreak just as much havoc on individuals as the oil spill did on sea life in the Gulf. Jefferson names Ken Burns, Nora Ephron and Errol Morris as some of her biggest influences. She will likely spend much of the year promoting and screening her David & Goliath story, which officially hits theaters in April. Jefferson is currently writing her first narrative short,
A Reasonable Deception and also working on a series of short films, titled
Dying is the Easy Part.
5. Yoruba Richen
Richen’s 2013 documentary,
The New Black, boldly goes where many of us have been afraid to go in discourse about the fight for gay rights in America. Richen’s film exposes and explores the relationship between black America and homosexuality, specifically gay marriage as it is understood (and perhaps misunderstood) by the black church. Richen provocatively asks whether or not gay is the new black, but has openly stated that she does not see the gay rights movement as the new black civil rights movement. A Harlem native and Guggenheim fellow, Richen has an extensive background in documentary filmmaking. (Her previous film was
Promised Land, a PBS doc that received much acclaim.) Of her many goals, the writer/director/activist hopes to open up dialogue between the black and gay communities and give voice to those who are members of both.
7. Angel Kristi Williams
The Baltimore native who now resides in Los Angeles recently got some buzz for her Seed & Spark fundraising campaign for a new coming-of-age drama,
Charlotte. The project, which explores the complexities of friendship and budding curiosities between two young girls in Baltimore, represents the final stage of Williams’s MFA Screen Directing project for Columbia College Chicago. Her previous short film,
The Christmas Tree is still making its way around the festival circuit.
at this being a takeover. Let's call it finally a foot in the door. 
