This movie is probably the worst movie I've ever seen in my entire life. The storyline was mentally challenged; who cares about flies going into space? The dialog was terrible. I've seen a lot of bad kid movies but this is the worst ever. I would also expect much better animation from a film made in 2008. The animation was worse than something you might see from the 90's. Kids might like it, though. Sure, let your kid watch it. But forbid it to kids over the age of 9.
My 2 year old LOVES this movie. He is fascinated by space, although not 100% accurate it is a cute intro for the little ones. Some of the younger or immature ones may not understand what is going on but seems on level for most 2-3 year olds. A bonus, he can sing the entire Sinatra song too.