Alright, this review may involve a lot of Nostalgia Goggles so I may be biased.
But when I was a kid, I loved this movie beyond belief.
The main theme is imagination and I loved that. Imagination has always been important to me and the idea of escaping to a world you created is something I so desperately dreamed of doing.
As an adult, I'll admit a good deal of that kiddish enjoyment has worn off but I still really like this film.
An interesting thing is that this film contains an extreme amount of conspicuous CGI. This however is just as much as much to it's advantage as it's detriment. In some ways, the completely CGI backgrounds give Planet Drool it's own unique look, it almost fits because this is supposed to be a small boy's dreamland.
The acting is a bit cheesy but it's alright.
I applaud the concept of the movie, the execution may be a little hit-and-miss, but for the most part I enjoy it.
The ending is a bit weird but at worst, it's forgivable, at best, it's and okay ending that fits thematically.
The humor is cheesy as well but still enjoyable.
All in all, I think this is a good film to show your kids, just don't expect it to be one of those films that everyone agrees was awesome and stays awesome. I like it a lot for it's themes and just for the fact that it's a film I liked as a kid.
If you don't like, I completely understand.
I applaud Mr. Rodriguez for making this specifically for his kids.