Lots of kids, and a few adults, get by with a little help from their imaginary friends. But in this wild movie based on the book Caging Skies by Christine Leunens, little Jojo (Roman Griffin Davis), a German boy who’s a member in training for the Hitler Youth – and his imaginary friend is Adolf Hitler himself. This crazy, bold, yet audaciously entertaining satire was adapted for the screen by What We Do in the Shadows writer Taika Waititi, who also directs. And, t