text: In 1967 , he was the most successful draw at the box office , the commercial peak of his career , with three successful films , Guess Who 's Coming to Dinner ; To Sir , with Love and In the Heat of the Night .
simplified: In 1967 , he was the most successful actor at the box office , with three successful films , Guess Who 's Coming to Dinner ; To Sir , with Love and In the Heat of the Night .