The film does that successfully creating a wondrous, immersive world with round-headed kid characters. It&rsquo;s a cheery, old-fashioned cartoon film. Adapted from the original comics that appeared in a gag-a-day format in the newspapers, it&rsquo;s refreshing to see gags on the big screen. But for the adult audience, is it engaging enough? In a world where the only real threat is a red toy fighter plane &ndash; that has allusions to World War I &ndash; the story feels too predictable. I understand that people who&rsquo;ve read the comics may have a different trip, but others may struggle to fully involve themselves with the ups and downs in the narrative. Another minor grudge I have is the absolute redundancy of 3D, with the technology not adding much to the experience.