Who directed 'Clueless' (1995)?

Who directed 'Knocked Up' (2007)? Who directed 'Bridesmaids' (2011)? Who directed 'Mean Girls' (2004)? In what year was 'Mean Girls' released? In what year was 'Clueless' released? Who directed 'Fast Times at Ridgemont High' (1982)? In what year was 'Fast Times at Ridgemont High' released? Who directed 'Legally Blonde' (2001)?