Answer
The 45th Academy Awards ceremony was held on April 27, 1973, at the Dorothy Chandler Pavilion in Los Angeles. Marlon Brando won the Best Actor award for his performance in The Godfather, but refused to accept the award in protest of the treatment of Native Americans. Instead, Sacheen Littlefeather, a Native American activist, accepted the award on his behalf and read a statement from Brando.