Why you can trust GamesRadar+ Our experts review games, movies and tech over countless hours, so you can choose the best for you. Find out more about our reviews policy.

It may have the daftest of titles, but if you're looking for kid-pleasing summer amusement you could do worse than this Danish cartoon. The somewhat silly plot centres on three kids who accidentally happen across the workshop of amiably mad Professor MacKrill.

The prof has developed a potion that turns humans into fish and soon the children are swimming around a marine wonderland. But the potion's antidote makes existing marine life highly intelligent and fish leader Joe (Alan Rickman) refuses to part with his evolutionary shortcut. Especially as he's bent on building a fishy fascist state (fischist state, perhaps?).

Rickman's trademark villainy and the well-realised underwater stuff make up for the irritating songs. Should send all but the most cynical family members away smiling.

The Total Film team are made up of the finest minds in all of film journalism. They are: Editor Jane Crowther, Deputy Editor Matt Maytum, Reviews Ed Matthew Leyland, News Editor Jordan Farley, and Online Editor Emily Murray. Expect exclusive news, reviews, features, and more from the team behind the smarter movie magazine.