Corrected entry: When Leopold comes to the future the elevators stop working correctly (JJ makes a comment about moving his office to the ground floor due to the malfunctions, people are taking the stairs), yet Kate gets in the elevator near the end of the movie without even thinking about it.
nala98036
29th Oct 2009
Correction: When Kate gets into the elevator, Leopold has already gone back to 1876, therefore, the elevators are no longer malfunctioning.
The elevator just broke it had nothing to do with whether he was there or not. If that were the case there wouldn't be an elevator in the first place.