The Happening (2008) - 9 mistakes

Continuity: When the Jeep stops in Priceton, we can see its on a single land road. However once it starts to accelerate in the next shot to ram the tree at the intersection, it is now a forked road.

Factual error: There are no tracks, stations or train routes in Filbert, PA.

Continuity: During the scene when less than a half dozen of them are running through the field before they head towards the model home, the one girl (Mara Hobel) who was running in the field with them disappears when the wind harmlessly catches up with them.

Continuity: When the train first leaves Philly heading to Harrisburg, it only has 3 cars. In the overhead scene that's following the train it now has 5 cars.

Factual error: The cars the train is pulling for the Philadelphia to Harrisburg route are not ones that represent any passenger cars used for the Amtrak or Keystone routes.

Plot hole: When John gets out of the crashed jeep, he sits on the ground and picks up a shard of glass to slash himself. Aside from the mirrors which didn't get damaged from the impact, the windshield and front side windows are all safety glass. At no point do we see glass fly behind way behind the jeep, so where did the shard come from?

Revealing: When they are sitting down for dinner at the old lady's home, it is clear that a very white light source is in the room brightening things up - something that non-electric oil/kerosene light sources cannot do.

Continuity: When the woman shows the video at the Filbert restaurant of the man being mutilated by the lions, the position of her hand holding the iPod changes between the front and back shots.

Other: Near the end of the film, the group arrives at the home of Mrs. Jones, a rather eccentric hermit. They are carrying no luggage, supplies, or anything that I can see. Mrs. Jones' wardrobe appears to be out of another era (indeed, the film goes to extremes to discuss how isolated from the world she is) and she is not the same size as any of the three characters who arrive at her home. The next morning, however, all three have different, modern-day clothing.