Who wrote the slasher film, released in 1997, that starred Jennifer Love Hewitt? 
Jennifer Love Hewitt:  She later starred in the horror film "I Know What You Did Last Summer" (1997) and its 1998 sequel. I Know What You Did Last Summer: I Know What You Did Last Summer is a 1997 American slasher film written by Kevin Williamson and directed by Jim Gillespie.
Kevin Williamson