Factual error: Eddie drops Jake off near Madison, Wisconsin after he realises Jake just wants Allie back. Minutes before this, the background in the vehicle shots shown is in the mountains. Wisconsin, especially that part of the state, doesn't have mountains. Nearly the entire film was shot in British Columbia.
Factual error: After the group of ladies drop Jake off, he's seen at the on-ramp of "I-15 east" trying to hitch a ride. I-15 is a North / South interstate. While portions go east / West, its on-ramps are still labeled as North or South.
