As a big fan of the original movie, I was perplexed when I saw the ads for the reboot/reimagining. Why? The old movei was great! Does Hollywood have no new ideas?
But I'll admit it... the Rock seldom makes a movie that I don't enjoy, even if it's on a completely stupid, lowest common denominator level.
We got one of those Starz preview weekends where they show about one new movie and a bunch of old crap, and the new one happened to be Jumanji, so my wife DVRed it, and we watched it a week ago.
I have to say... I loved it. Maybe more than the original.
It's not meant to replace that movie, it just fits into the weird pocket dimension that is Jumanji. Apparently, whatever magic causes a board game to transport people to a fantasy world is able to adapt itself to a video game that does the same thing. The idea is that a bunch of teenagers in detention find this old game system and play the game instead of doing the job they were supposed to do, and they get transported tot he game world. The Rock and crew are all just avatars inside the game world, having been infused with the consciousness of the kids that chose them as characters.
It has multiple fun "fish out of water" moments and clearly does not take itself too seriously. However, it still keeps the adventure aspect and doesn't mock the original material.
All in all, you could do worse for two hours of mindless entertainment.