Gus Bendinelli’s review published on Letterboxd :
This is not a kids' movie. It's a powerful, moving, and unbelievably realistic portrait of a childhood through a child's eyes. Both the classic story and the film brilliantly split Max's personality and internal struggles into an array of creatures that are both playful and terrifying. The whole film feels like a balancing act of primal emotions; Jonze manages to encapsulate a broad spectrum of feelings associated with childhood: feelings of adventure, confusion, enjoyment, frustration, and danger. "Where the Wild Things Are" is loaded with emotional depth, and the top-notch cinematography, fantastic soundtrack, increible effects work (the "wild things" are puppets with minimal CG to create facial expressions), and minor structural modifications to the original story all work extremely well. It's a very unique watch to say the least—I've never seen anything like it. Kudos to Spike Jonze and Warner Brothers for having the guts to retain Sendak's original message and make a daring and beautiful film full of heart.