This has to be one of Robin Williams' best films to date! He's a smooth talker for an advertising agency trying to keep his job, while at the same time trying to take his family on a vacation. They were originally slated to go to Hawaii for a week, but his boss had other plans for him. He rents an RV and drags his wife and kids through several silly mis-adventures while trying to get to the meeting place on time, and keeping it a secret from his family to boot!
The dialogue is very clean, so its a family friendly film. As a plus, all the funny scenes you see in the previews for the movie aren't all there is to laugh about, I giggled through the whole thing. Go see it!