Search: Starring Christopher Mintz-Plasse

What's noticeable about Gillespie's version is how little really has to change to make it work.

Fast and funny enough to let even its derivativeness take wing – and, as any seven-year-old can tell you, dragons are cool.

There is no tension, no expectation of trouble. Happiness infuses the land

Wadlow's sequel flails about like a bar room drunk in a brawl - despite hitting out in all directions, very few of its punches strike their target.

Overall the characters fail to transcend their archetypes, despite Kodi Smit-McPhee anchoring the film with real emotion.

Fennell explores the lasting effects of traumatic events with care, never making light of the situation even amid moments of comedy.

There's nowt of substance, or wit to last more than a 30-minute sitcom, but the script's tone is affectionate and likable.

I honestly wish I'd written this movie, and I suspect a handful of people my age feel the same way.

With their Day-Glo colours, singing and attitude to hugging, this is probably one of the few animations that will simultaneously appeal to the very young, any parents nostalgic for rave culture and grandparents who tuned in and dropped out.