Looking for a sci-fi movie, probably late 1950's or early 1960's. I'm pretty sure that it was B&W. The only thing I can remember is that people were trying to walk across what I think was a crashed UFO. The panels would light up, and if they were on them at that time they would collapse (and die I think). I know that it's not much to go on, but I was young, and I've never been able to figure this out.