New York, Apr 19 : Tom Wolfe''s 1968 classic "The Electric Kool-Aid Acid Test" is being turned into a film.

The movie version of the book, which chronicles writer Ken Kesey''s LSD-dropping band of hippies known as the Merry Pranksters, is being done by American film director Gus Van Sant, reports The New York Post.

Rolling Stone reports that Van Sant, the Oscar-nominated director of "Milk," originally pictured Heath Ledger in the role of Kesey.

However, he's now eyeing Jack Black and Woody Harrelson.

Van Sant is also helming the book''s adaptation with Oscar-winning "Milk" scripter Dustin Lance Black. (ANI)