Pitch Perfect and Senior Year star Rebel Wilson has revealed that her Grimsby co-star Sacha Baron Cohen is the previously unidentified Hollywood “a**hole” that she talks about in her upcoming memoir. According to Wilson, Cohen, who is best known for the characters Ali G and Borat, has threatened Wilson with legal action regarding her book. While Wilson had kept his identity a secret at first, she has now revealed that Cohen is the co-star who attempted to silence her.