Who directed 'American Beauty' (1999)?

Who directed 'Saving Private Ryan' (1998)? Who directed 'Platoon' (1986)? Who directed 'Full Metal Jacket' (1987)? Who directed '1917' (2019)? Who directed 'There Will Be Blood' (2007)? Who directed 'The Social Network' (2010)? Who directed 'Slumdog Millionaire' (2008)? Who directed 'Mad Max: Fury Road' (2015)?