Ben Stiller plays a divorced father with shared custody of his son who feels like he has to compete for his son's respect with mom's new boyfriend. He has had trouble finding his way since the divorce, with several failed career moves and financial troubles. He turns to a job agency to get him a job, any job, when his son tells him maybe he should quit trying to do something extraordinary because maybe he is just an ordinary guy who should go get a job. He is sent to the museum of natural history to be a night watchman.
His first night on the job, he undergoes a trial by fire, and he finds out it is nothing like he expected. Before long, he and his son both find out it is his chance to do something extraordinary and be someone great in the eyes of his son after all.
This is a PG rated film that is very family safe and friendly. It is just a tad corny from an adult perspective but very fun and enjoyable and full of amusing imagination and good clean humor. It promotes family values, interest in learning, and working together. I believe it will do well at the box office and will become a minor family classic for the next few years due to the small number of interesting films with a PG rating.