It lasts about 40 minutes, but can vary depending upon how the person in the "hot seat" is doing. When we were there last year, the host was saying how they've had kids as young as 2 win the "fastest finger" question just by pushing the buttons. LOL! Your children are young enough that if one did end up in the "hot seat," you would be allowed to go with them and help them answer the questions. If you go during "Star Wars Weekends," and your kids are Star Wars fans, they'll really enjoy it. If they're familiar with the TV show, I think they'd enjoy it, too, and usually the easy questions are Disney-related. Plus, the hosts always joke around with the audience. I actually ended up in the "hot seat" myself last summer and it was a blast. I never expected to end up there, of course, but it ended up being the highlight of our vacation. LOL! Anyway, you'll have to be the judge for what you think your kids would enjoy. It is like the TV show, but everyone in the audience has equal opportunity to end up in the "hot seat."
-Dorothy (LadyZolt)