Terrible CGI and special effects: Check
Meandering plot: Check
Blatant filler scenes: Check
Bad acting: Check
BONUS POINT, Actor trying to impersonate a more famous actor: Check
Ridiculous set-up: Check
On their own, each of the above is excusable. They can even occur in good films, and some of them can even aid their film if done correctly. However, when stacked up on each other like they are in this film, they result in a bad film. Watch it if you enjoy laughably bad films.
Postscript: A lot of people will defend bad children's films on the basis that children enjoy them. This is not an acceptable excuse, it either implies that children should be left alone to watch films, or that parents should be made to watch bad films. This negligent attitude to children's cinema is why studios produce films like The Emoji Movie, and why we now have a generation of cinema-goers that pays to watch Transformers films.
