Driver, I looked at these links and have several comments.
The first one seems to be falling upward, but at a fairly slow rate. I could certainly cause such a problem for the cameras. When it finally stopped, the phone fell off the hook and a ceiling plastic fell out. Whoopee!!! I'm not sure this was even a commercial elevator. It looked like a LULA or a residential, maybe.
The second one is harder to comment on. Lots of people claim a free-fall and actually experience a lock clip at speed and assume a free-fall. In the picture, there were definitely some broken cables, but the elevator pictured looked older and different than the one first pictured, They didn't back away quitte far enough to compare jambs, but I think I have seen that picture in somebodies video travel journal.
The third one has happened lots of times, mostly with Ward-Leonard systems and failed brake systems. These problems were what prompted the rope brakes, sheave brakes, and redundant braking systems.
In summary, you took three unrelated scenarios and tried to weave them into a workable possibility. I'm not even convinced that at least one of these links wasn't staged. I set up several scenes for movies and made elevators do things they would not ordinarily do. Would have required multiple simultaneous failures.
