Keaton says she was looking for the perfect outfit for her high school graduation and had assembled almost all of it, but wanted something to hide her face and put the focus on her smile. "I found the answer," she wrote. "A hat, a man's old bowler hat. I put it on my head – and that was it!" But Mom said no. "'I love it,'" Dorothy Keaton told her daughter. "'But not for this occasion, Diane.'" The bowler hat later became a big hit when Keaton wore one in "Annie Hall."