I took my 2- and 6-year-old daughters to see this movie and we couldn't stop laughing. They were both engaged throughout the film. You'll see favorites from the first film (monkeys and penguins) and a few throwback jokes, but their well done and this film stands alone well too.
Don't go thinking you're seeing an thriller like the Sixth Sense. This movie has a much stronger message about human inter-personal relationships (like Lady in the Water, Signs, the Village).
The movie was good although the topic seemed like a reach from the others. As times it felt over-acted and as if Lucas and Spielberg were using the dialogue to apologize for not making another Indy movie sooner. Same familiar witty banter, fight scenes and outrageous foleying that you love from the original three movies. Shia LaBeouf is a great addition to the franchise.