In 'Sunset Boulevard', what is the name of the faded silent-film star?

In 'The Graduate', who plays Benjamin Braddock? In 'Bonnie and Clyde' (1967), who plays Clyde Barrow? In 'Dr. Strangelove', which actor plays three different roles? In 'Some Like It Hot', what instruments do Joe and Jerry play? Which film won the Academy Award for Best Picture for 1934? Who directed 'It Happened One Night', the Best Picture winner for 1934? Which film won the Academy Award for Best Picture for 1935? Who directed 'Mutiny on the Bounty', the Best Picture winner for 1935?