Scariest movie You've Seen

I don't remember the title - it's been way too many years since.
But I do remember the circumstances and what happened after:
We'd just moved into our home about six months earlier. I was home alone because my wife had gone to some kind of 'girls party' at our neighbor's home across the street. It was a warm night and I had all of the windows and sliding glass doors open.
Our TV room back then was one of the spare bedrooms since we hadn't yet started a family. The room just had linoleum flooring with an area rug.
The lights were off and I was laying on my side on the floor watching this scary movie in the dark with my back to the bedroom door. Our Irish Setter must have gotten lonely because he came into the room - without me either seeing or hearing him - and laid his muzzle down on my arm right at a particularly scary part of the movie.
I jumped and spun around to see what "monster" had come into the room! It scared the dog so much that he spun around and headed out of the room except his paws couldn't get any traction on the linoleum no matter how fast he thought he was running.
I know it was a comical scene and we've laughed over the memory many times.
I just wish I could remember what movie it was!