I remember seeing the previews for "Zatura: A Space Adventure" back in 2005 and thinking that the premise for this one is pretty much "Jumanji"....which it is. While not a sequel, the game clearly is a reworking of the original story. So, if you like one, you'll likely enjoy the other.
When the story begins, a divorced dad (Tim Robbins) is trying to work as his bratty kids are being...well...brats. Eventually, after Dad leaves, the youngest finds a game called "Zathura" and when he starts playing it, the game becomes real. Suddenly the house is transported to outer space and the only conceivable way to get back is to, apparently, complete the game with his annoying and occasionally hateful brother. In the process, they meet an astronaut, a murderous robot and meat-eating lizard creatures.
The visuals in this film are mind-blowing...particularly for 2005. So much CGI was used...and it looks real. In fact, the CGI and stunts are second to none. As for the story, it's decent but has two minor problems--you really hate the three siblings and the story will be less interesting to adults and is too violent and scary for younger kids. Worth seeing with your kids.