Continuity: When Rachel and Harry are crossing the river in the truck, they get obviously very wet. By the time they get to Ruth's lodge, they seem quite dried out.
Great sites
Mistakes
When the group is first leaving shore in the boat in the acid lake with the cabin behind them on fire, the angle of the river behind them compared to the shore line doesn't match and moves independently showing how they matted the two different scenes together. See more...
Trivia
When we see Paul in the van as it is taken over by the overflowing river, just as he hits the water, we hear the Wilhelm scream. See more...
Dante's Peak mistakes
Continuity: When they are driving up the mountain to get to her kids, they cross a river and they get hit on the passenger side of the truck shattering the window, but later when they show them going up the mountain there is a new window there.
Revealing: In the scene where the van is about to be flipped over on the washed out bridge, wires can be seen on the hood of the miniature that pulled it across.
Dante's Peak trivia
When we see Paul in the van as it is taken over by the overflowing river, just as he hits the water, we hear the Wilhelm scream.