I've been to several movies where I was the only one in the audience. For some movies (comedy mostly) a crowd is good...but the rest, I'll take being in there by myself any day.
I recall a few just from last year: Hannibal, Mulholland Drive and Sidewalks of New York; all empty besides little ol' me.
Mission to Mars. One of the worst movies I've seen. It was on a weekday and there were just three of us: me, my wife, and a friend. We had the theater to ourselves.
I wonder if they still roll the film if nobody is present.
When my wife and kids and I went to see Atlantis, we were the only ones in the theater and it was the opening weekend first show! 4 people in a theater....how great is that.
1: I went to see Jurassic Park a year+ after it had opened, at a local megaplex that must have needed a movie to fill a screen so they brought that back, and I was the only one there.
The recent (well, a couple years ago) re-release of Wizard of Oz. Sadly, there were only 4 of us in the theater. I figured the showing would have at least a few families.
In 1992 the film "Hoffa" was filmed, in part, in Detroit. Myself and several friends were extras who were part of the several street scenes that were filled at Detroit's Eastern Market area.
When my wife and I went to see the film (a weekeday, 11:30am showing at a large mall), we were the *only* two people in the theater.
It was great.
Now, we enjoy the same benefits of that experience with our own home theater!
Smallest crowd I've seen: 2. That's counting myself. That was a matinee showing of Lord of the Rings several weeks after it was released. The other person was a lady. I couldn't tell if she was hot or not, or maybe... (j/k)