Taika Waititi is a tightrope walker when it comes to the execution of Jojo Rabbit, the kind of picture that few directors might be permitted to make. It helps when you’re coming off Thor: Ragnarok, the best received of that sub franchise in the MCU. This is a tale of atrocities and those involved in it. And it’s handled with a primarily light tone that eventually doesn’t shy away from the horrors of Nazi Germany.

The premise, based on a novel from Christine Leunens, sounds high concept in description. A boy with an imaginary friend that happens to be Adolf Hitler. That sentence could provide a visceral reaction for many and it’s up to Waititi to justify it. He does so in large measure.

The boy is Jojo (Roman Griffin Davis), a 10-year-old Hitler youth living with his single mother (Scarlett Johansson) in the waning days of World War II. All he really knows is the propaganda of his nation’s leaders and he’s part of the Nazi youth camps. They’re taught by an alcoholic Captain (Sam Rockwell) and a no nonsense Fräulein (Rebel Wilson). Jojo reveres Hitler so much that he acts as his imaginary companion. Waititi pulls double duty as the monstrous Chancellor and plays him as a total nincompoop. Yet like most fictitious companions (even if they’re based on evil real life figures), Jojo’s Hitler serves to reinforce his misguided feelings toward the Jewish people. Also because he’s lonely.

When he discovers that his mom is sheltering young Jewish Elsa (Thomasin McKenzie) upstairs, his adolescent worldview is shattered. The witless Hitler doesn’t know what to make of it. Therefore Jojo struggles with how to handle this until his humanity starts to shine through.

To call this movie is a delicate balance is an understatement. There are satirical tones, but there’s a lot more heart. Anyone expecting a Mel Brooks style Producers exercise should look elsewhere. The humor is abundant for the first two acts especially, but always imbued with a level of pathos that comes into sharper focus as it goes on.

Jojo Rabbit is mostly an inventive case study in showing one child learning not to hate. It could fall apart without the casting of Davis. He’s rarely off screen and his performance is fantastic. Not fantastic for a child actor. Fantastic. Not many youngsters could pull off the range of emotions he has to go through and he nails it. McKenzie, in many ways, has an equally challenging role as Elsa navigates teaching Jojo not to fear her. The humanity of her character and the actress playing her convinces us and him. As you might imagine, Waititi has a tricky part as well. He’s got some of the best lines and reactions of all in his campy take. The more recognizable actors are all first-rate. In one of the most powerful scenes not involving Jojo, Johansson has a heart to heart about adulthood with Elsa (on the cusp of entering that status). And speaking of highlights, Jojo’s actual best friend Yorki, played by Archie Yates, is a scene stealer.

So… does this all work? Mostly yes. I also can’t deny that Rabbit never quite reaches the emotional impact that it’s trying to land. The concept doesn’t block that possibility. It’s more that the tonal shifts can be somewhat jarring in a couple of cases. It’s practically unavoidable. I never doubted that Waititi’s heart is in the right place and he’s assembled a superb cast to provide numerous laughs and a lot of warmth. Most importantly, it’s told through a child’s eyes who doesn’t recognize his idols are as false as can be until those eyes are opened.

*** (out of four )