MEMOIRS OF AN INVISIBLE MAN opens. Directed by John Carpenter. Written by Robert Collector, Dana Olsen & William Goldman. Based on Memoirs of an Invisible Man by H.F. Saint. Chevy Chase dials down the Griswold/Fletch shtick as a wise-ass stock broker who gets targeted by govt. spooks after a freak accident renders him invisible. Sporadically amusing comedy thriller boating some impressive special effects. With Daryl Hannah, Sam Neill and Michael McKean..