Alfonso Cuaron bagged a hat trick of Oscars on Sunday for Roma, his love letter to his childhood in 1970s Mexico City, but civil rights drama Green Book crashed his party with a win for best picture.

Voting members of the Academy of Motion Picture Arts and Sciences gave nods to six black actors, including two-time Oscar winner Denzel Washington in the best actor category for his performance in Fences, an adaptation of a play about a working-class African American family in 1950s Pittsburgh.

Voting members of the Academy of Motion Picture Arts and Sciences gave nods to six black actors, including two-time Oscar winner Denzel Washington in the best actor category for his performance in Fences, an adaptation of a play about a working-class African American family in 1950s Pittsburgh.

The London Film Festival opened its 60th edition Wednesday with a spotlight on ethnic minority actors and filmmakers, reflecting a debate over the lack of diversity currently raging in Hollywood.