The beginning and end of the movie were shot on the same, intact, set. Throughout the movie the set was damaged and destroyed forcing the film to be shot in sequence except for the beginning and the end.
Kristen Stewart admitted she was disturbed to see the life-size replica made of her for the scenes where Lisa is frozen. Not long after, several men reportedly offered to buy the replica, which creeped her out even more when she found out.
Originally conceived as a direct sequel to Jumanji (1995). VFX supervisor Ken Ralston was lined up to direct before Sony Pictures abandoned the project in favor of adapting "Zathura" as a standalone film.