In which 1967 film do Scott Wilson and Robert Blake play the drifters who murdered a Kansas family?

Who won Oscars for playing Christina Drayton in 1967 and Eleanor of Aquitaine in 1968? The 1967 Oscar-winning foreign film "Closely Watched Trains" came from which country? In "Guess Who's Coming to Dinner" (1967), who played Dr. John Wade Prentice, the surprise dinner guest? In which 1967 film does Rod Steiger play Sheriff Gillespie opposite Sidney Poitier as Mr. Tibbs? Faye Dunaway and Warren Beatty played which Depression-era outlaw couple in 1967? Who wrote "The Death of a President" (1967), about the Kennedy assassination? In which 1967 film is a young man told "I just want to say one word to you... Plastics"? In which 1967 film does Sidney Poitier play a teacher who earns the respect of rough East End students?