A woman who says she was just 16 when she became Woody Allen's mistress in the 1970s is speaking out. Babi Christina Engelhardt, who says she was a teen model when she met the famed director in 1976, opened up to The Hollywood Reporter about her alleged eight-year affair with the "Annie Hall" filmmaker. Engelhardt, who now goes by Christina Engelhardt, told THR that she met Allen at the restaurant and celebrity hotspot Elaine's and gave him her phone number. She said soon, Allen, who was 41 at the time, called her and invited her to his Fifth Avenue penthouse...