Timeline/YMMV

Idiot Plot: A really big one. The time machine can send travelers to any place and time on Earth. A professor traveled back to a specific time and place. So they send his students to retrieve him a few days after his arrival, instead of setting the destination time about a minute before the professor's arrival.
- Averted in the film, where the two ends of the wormhole are locked in position a certain distance in time away from each other. They sent him back in time three days ago, so they can only send his rescuers back to three days after he got there.
Squick: The description of the tannery. Pretty much Truth in Television.