Who directed 'Sunset Boulevard' (1950)?

Who directed 'The Wizard of Oz' (1939)? Who directed 'Gone with the Wind' (1939)? Who directed 'It's a Wonderful Life' (1946)? In what year was 'It's a Wonderful Life' released? In what year was 'Sunset Boulevard' released? Who directed 'Some Like It Hot' (1959)? In what year was 'Some Like It Hot' released? Who directed 'Rear Window' (1954)?