I’m trying to identify a movie I saw when I was very young. It was a “Saturday Matinee” playing on one of the local stations, and I likely watched it in the late 60’s. So I expect that the movie is from the 50’s or 60’s. I watched it in black and white, but it could have been a color movie on a black and white set.
I clearly recall a scene where scientists enter a lab and some see something move past them in a blur. Later in the movie, they come upon themselves in the same lab where they appear to be frozen and not moving. Then they notice that their “other selves” are moving, just almost inperceptibly slowly. They are encountering themselves but at a completely different time scale. Unfortunately, I don’t recall much else about the movie, just the idea that they encounter themselves once with the others flashing past, and again seemingly not moving at all.
If this rings any bells with anyone, I’d love some pointers to try to track this movie down.