

I Saw What You Did
“Don't laugh little girl, better run for your life. The man you were talking to, has just murdered his wife!”
Teenage friends Kit and Libby make prank phone calls for fun but then find themselves involved in a brutal double murder committed by one of their targets.
Where to watch I Saw What You Did in United States
Click a service to open I Saw What You Did there. Availability last verified on June 20, 2026.
About I Saw What You Did
I Saw What You Did is a 1965 English-language thriller, horror and crime film directed by William Castle. The cast is led by Andi Garrett, Sara Lane, Joan Crawford. It has a runtime of 1h 22m. Viewers rate it 6.2/10 across 100 ratings. In United States, it is available to rent or buy on Amazon Video and Apple TV Store.
I Saw What You Did was produced by William Castle Productions and Universal Pictures and made in United States of America. It was released on July 21, 1965, and carries a NR certification.
- Director
- William Castle
- Writers
- William P. McGivern
- Release date
- July 21, 1965
- Original language
- English
- Age rating
- NR
- Status
- Released
- Country
- United States of America
- Production
- William Castle Productions, Universal Pictures
I Saw What You Did cast & crew
I Saw What You Did was directed by William Castle and written by William P. McGivern.
The cast features Andi Garrett as Libby, Sara Lane as Kit, Joan Crawford as Amy Nelson, John Ireland as Steve Marak, Leif Erickson as Dave Mannering, and Sharyl Locke as Tess.
Behind the camera, the score was composed by Van Alexander, cinematography is by Joseph F. Biroc, and it was produced by William Castle.
Is I Saw What You Did worth watching?
I Saw What You Did holds an audience score of 6.2/10 from 72 ratings, a solidly received thriller films.
At 1h 22m, it's an easy, time-light watch.
If you enjoy thriller, horror, and crime, I Saw What You Did is worth a place on your watchlist.
How and where to watch I Saw What You Did
I Saw What You Did isn't on a subscription service in United States right now, but you can rent or buy it on Amazon Video, Apple TV Store, Google Play Movies, and YouTube.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
Rate & review
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Cast of I Saw What You Did

Andi Garrett
Libby

Sara Lane
Kit

Joan Crawford
Amy Nelson

John Ireland
Steve Marak

Leif Erickson
Dave Mannering
Sharyl Locke
Tess

Patricia Breslin
Ellie Mannering

John Archer
John Austin

John Crawford
Trooper

Joyce Meadows
Judith Marak
Tom Hatten
Gerald Nyes

Douglas Evans
Tom Ward
I Saw What You Did — FAQs
▸Where can I watch I Saw What You Did in United States?
I Saw What You Did is not on subscription streaming in United States right now, but you can rent or buy it on Amazon Video and Apple TV Store and Google Play Movies.
▸What language is I Saw What You Did in?
I Saw What You Did is originally in English. Subtitle and dub options vary by streaming service.
▸How long is I Saw What You Did?
I Saw What You Did runs 1 hours 22 minutes (82 minutes).
▸What is I Saw What You Did rated?
I Saw What You Did is rated NR. It holds a 6.2/10 audience score from 72 ratings.











