Movie submitted by Var:
This film is probably from the early 2000 or maybe late 90’s.
Siblings picked up in a car by an uncle or distant family member after their parents die. The older man is evil, a scene of the two kids being locked in a car possibly on train tracks.
A woman who lives in a house over the ocean, the house is on stilts. A book with clues in it using letters of each word that is a warning. At some point the old lady who owns the house is decapitated and a storm comes and destroys the house on stilts.
The end scene has somrthing to do with a stage where someone is fighting during a play on a stage using pulleys and cables.