I Saw What You Did

I Saw What You Did is a 1965 film about two teens who unknowingly prank call a murderer.
 * Directed by William Castle. Written by William P. McGivern, based on the novel Out of the Dark by Ursula Curtiss.

Don't laugh little girl, better run for your life. The man you were talking to, has just murdered his wife! (taglines)

Libby Mannering

 * I saw what you did, and I know who you are.

Taglines

 * Don't laugh little girl, better run for your life. The man you were talking to, has just murdered his wife!
 * Fate dials the number...terror answers the phone!
 * You May Be the Target... of the Next Phone Call...
 * William Castle warns you: This is a motion picture about UXORICIDE!
 * It Will Jet You to the Outer Limits of Suspense, Terror and Excitement!

Cast

 * Joan Crawford — Amy Nelson
 * John Ireland — Steve Marak
 * Leif Erickson — Dave Mannering
 * Sara Lane — Kit Austin
 * Andi Garrett — Libby Mannering
 * Sharyl Locke — Tess Mannering
 * Patricia Breslin — Ellie Mannering
 * John Archer — John Austin
 * John Crawford — State Trooper
 * Joyce Meadows — Judith Marak
 * Tom Hatten — Gerald Nyes