Here's just a small part of the story, but it makes my point.
When Alan Parrish (played by Robin Williams in the movie)
was a little boy, he played the Jumanji game and got sucked into it.
Unfortunately, Alan didn't know that a clue would appear
in the Jumanji eye in the center of the board,
and so he didn't read it.
As a result he was stuck in the jungle for 23 years
without any idea how to get out. I think you can see the similarity...