The swamp behind the Devereaux house was created with CGI effects. The actual house used in the film, Felicity Plantation, is situated inland in St. James Parish and is surrounded by farmland. The fictional Devereaux house was situated in Terrebonne Parish, which is coastal and swampy.
When Caroline is giving Ben his second bath she soaks the sponge with soap and water. A second later when she goes to get the mirror her hand is completely dry.
While this was a box office success and many fans would welcome a sequel, the creators apparently have no intention of making one and feel that the ending was a satisfying enough conclusion to the story.
Q
A Note Regarding Spoilers
A
The following FAQ entries may contain spoilers. Only the biggest ones (if any) will be covered with spoiler tags. Spoiler tags have been used sparingly in order to make the page more readable.
Q
Why were Luke and Caroline able to enter the store despite the brick dust?
A
The brick dust makes it so that anyone who means harm to the person inside cannot cross the line. Neither Caroline nor Luke meant harm to the blind lady in the store, so they were able to cross the line.