premise: Sandra Bullock was a director.
hypothesis: Sandra Annette Bullock ( [ 's ændrə_ˈbʊlək ] born July 26 , 1964 ) is an American actress , producer , and philanthropist . She subsequently starred in several successful films including Speed ( 1994 ) , While You Were Sleeping ( 1995 ) , The Net ( 1995 ) , A Time to Kill ( 1996 ) , Hope Floats ( 1998 ) , and Practical Magic ( 1998 ) . Bullock achieved further success in the following decades in Miss Congeniality ( 2000 ) , Two Weeks Notice ( 2002 ) , Crash ( 2004 ) , The Proposal ( 2009 ) , and The Heat ( 2013 ) .