Spencer Tracy Kramer's "Guess Who's Coming to Dinner" (1967), Tracy's ninth and final film with Hepburn. "Guess Who's Coming to Dinner" explored the topic of interracial marriage, with Tracy playing a liberal-minded newspaper publisher whose values are challenged when his daughter wishes to marry a black man, played by Sidney Poitier. Tracy was happy to be working again, but he told the press the movie would be his last. To commence filming, Tracy had to be insured for the high premium of $71,000; Hepburn and Kramer both put their salaries in escrow until Tracy completed his scenes. In poor health, Tracy could
Spencer Tracy all but unknown. Biographer James Curtis writes: "Tracy was scarcely a blip on the box office barometer in 1935, a critics' darling and little more". He was, however, well known for being a troublemaker. Producer Irving Thalberg was nevertheless enthusiastic about working with the actor, telling journalist Louella Parsons: "Spencer Tracy will become one of MGM's most valuable stars." Curtis notes that the studio managed Tracy with care, a welcome change from the ineptitude he had known at Fox, which was like "a shot of adrenaline" for the actor. His first film under the new contract was the quickly produced