Birdman, the unexpected virtue of ignorance by Mexican Alejandro González Iñarritu has won four awards, including the Oscar for Best Film this Sunday 22 February in Los Angeles. In his speech, the director called for greater respect for Mexican immigrants in the United States and dedicated his award to his compariotes. The film tells the story of a forgotten actor, Riggan Thomson, who returns to Broadway to direct a play in the hope of regaining his former glory