Ghost Town
Plot: A family, not realizing a vacant town is haunted, moves into a house in said town. But then they start noticing some strange things going on.
Important Scene: A bucket at the well is scene moving itself into the water, then up to the top of the well. It appears to turn over, but the water disappears into thin air, as if something is there to catch it.
Ending/Message: The entire movie the family is scared of all these ghosts and what they might do to their family. At the end you find out that they are all really nice and have actually been helping the family (cue a Saw-like montage of clips throughout the movie in which something good happened to the family, except this time you can see the ghost there, helping them out). The message of the movie is not all things that seem bad are actually bad. It is the exact same plot as Casper, but on a bigger scale. Maybe the movie even takes place in a town called Casper, but they don't make it obvious. Like, they just mention at the beginning of the movie off-handed or something.